Therapy Terms Glossary: What to Know Before, During & After

Most therapy glossaries are organized alphabetically, which isn’t exactly helpful when you’re sitting in a waiting room wondering what “therapeutic alliance” means or Googling at 11 p.m. trying to understand why your last session felt so heavy.

Therapist and client sitting across from each other in yellow armchairs

This one is organized differently: by where you are in the process. Whether you’re weighing your options, navigating your first few sessions, or thinking about what wrapping up might look like, you’ll find what you need here.

“Understanding the different psychology concepts helps us make better-informed decisions,” says Evan Csir, a licensed professional counselor at Thriveworks. That’s really what this is for—not memorization, but recognition. So you know what’s happening and feel like you have a say in the process.

Before you start therapy: Key terms to know

Before your first session, most of the terminology you’ll run into falls into two categories: provider types (who are these people and what’s the difference?) and insurance logistics (what is this actually going to cost me?). Getting clear on both can save you a lot of second-guessing before you even begin.

Term	Definition
Evidence-based practice	An approach to therapy that uses methods proven effective through clinical research, meaning the technique has been studied, tested, and shown to produce real results for real people, says Alex Cromer, a licensed professional counselor at Thriveworks. In practice, this looks like a therapist using CBT to address anxiety, DBT to build emotional regulation skills, or EMDR to process trauma, rather than relying solely on intuition or informal methods.
Modality	The specific method or framework a therapist uses in their practice, such as cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), or acceptance and commitment therapy (ACT). “All of these different modalities influence how the therapist perceives the challenges,” Csir says.
Specialty	A provider’s focus on certain demographics (children, couples, LGBTQ+ individuals), conditions (anxiety, trauma, addiction), or techniques. “It’s the same idea as why our PCPs refer us to a cardiologist or urologist, because they have more of that specialized training,” Csir says. This matters most if you need more targeted support than a general therapist offers.
Licensed therapist	A mental health provider who takes a theory-based approach to treatment and addresses ongoing mental health challenges. Most states require a master’s degree before licensure. Common abbreviations include LMHC, LCSW, LPC, LCPC, and LMFT.
Counselor	A term often used interchangeably with “licensed therapist”—counselors hold the same licensure requirements and scope of practice. They tend to focus on working through current or specific challenges rather than longer-term, deep-seated patterns.
Psychologist	A mental health provider with a doctoral degree (Ph.D. or Psy.D.) who can provide comprehensive psychological evaluations—for instance, for an ADHD or autism diagnosis. While therapists and counselors can also diagnose, psychologists are the only mental health providers who can conduct the formal testing that supports an official diagnosis. “They tend to have an emphasis on research, too,” Csir says.
Psychiatrist	A medical doctor who specializes in mental health and is licensed to prescribe medication. “A lot of folks rely on their PCPs because a psychiatrist seems so daunting, but the psychiatrist has that extra training in mental health, and they’re the ones that can describe in so much detail why these medications work, why this fits in,” Csir says. Thriveworks’ psychiatric providers are primarily psychiatric nurse practitioners (PMHNPs)—not psychiatrists—who hold the same prescribing authority with specialized training in psychiatric medication. Learn more about the difference.
Psychotherapy	The formal term for talk therapy—any structured approach in which a trained provider helps a client address mental health challenges through conversation, skill-building, and evidence-based techniques. Often used interchangeably with “therapy,” though psychotherapy typically implies a more in-depth, ongoing process.
In-network	A provider or practice that has a contract with your insurance company, meaning your insurer covers a portion of the cost. “It’s basically just saying your insurance company has vetted that professional and their workplace, and has agreed that they’ll cover the services that professional provides,” Cromer says. You’re typically responsible for a copay or coinsurance, but not the full session cost.
Out-of-network	A provider not contracted with your insurance. “More often than not, you’re responsible for the entire out-of-pocket cost of that therapy,” Cromer says—though some plans offer partial reimbursement if you submit a superbill.
Deductible	The amount you pay out of pocket for covered services before your insurance begins sharing the cost. If your deductible is $1,000 and you haven’t met it yet, you’ll pay the full session rate until you do—even with insurance. Worth checking before you book.
Prior authorization	Approval from your insurance company that’s sometimes required before they’ll cover certain services or providers. Not always required for standard talk therapy, but worth checking with your insurer in advance—especially for psychological testing (formal evaluations for conditions like ADHD or autism), intensive programs like partial hospitalization, or out-of-network providers.
Self-pay	Paying for therapy directly, without billing insurance. Some people choose this for privacy reasons or to avoid needing a formal diagnosis. It typically costs more per session, but it also gives you more flexibility in provider and treatment type.
Sliding scale	A reduced fee structure based on a client’s income or financial need. If cost is a barrier, asking whether a provider offers sliding scale rates is always worth it, Cromer says.
Intake session	The first meeting between client and therapist—it’s used to gather background information, discuss what brought you in, and begin building a relationship. A common misconception is that you need to arrive with a clear plan for what you want to work on. You don’t. That part comes later, and together, Cromer says.

Not sure which type of provider you need?

For most people seeking talk therapy, the distinction between a counselor, licensed therapist, or psychologist matters less than finding someone whose specialty and approach fit your needs. Psychologists are most relevant when you need a formal psychological evaluation. Psychiatrists or psychiatric nurse practitioners are the right call when medication may be part of your care. If you’re not sure, a general therapist or counselor is a solid place to start. You can always adjust from there.

In your first few sessions: Key terms to know

The first few sessions are less about doing the deep work and more about creating the conditions for it. A lot of what happens early is relational—building trust, establishing structure, and mapping out where you want to go. Understanding the terms from this phase can help you feel less like something is being done to you and more like you’re an active participant in your own care.

Term	Definition
Therapeutic alliance	The collaborative relationship between client and provider, built on mutual trust and respect. “A strong alliance allows us to do a lot more work, and make bigger asks of our clients,” Csir says. “It’s one of the big predictors of outcomes.”
Therapeutic rapport	The foundation of trust and connection that makes a strong therapeutic alliance possible. “Rapport is more about that process of how we do it,” Csir says—built through active listening, empathy, and consistent validation. Think of rapport as what you’re building; alliance as what it enables.
Treatment plan	The roadmap for what you want to achieve in therapy. It’s collaborative—you and your therapist develop it together—and it’s not set in stone. “You and your therapist can update your treatment plan at any time,” Cromer says.
Treatment goals	The specific objectives you and your therapist identify and work toward together. They operate on two levels. Bigger-picture goals might be managing anxiety, improving a relationship, or building healthier coping habits, but session-level goals matter too: figuring out how to handle a difficult conversation with your boss, navigate something with your kid, or approach a hard topic with your doctor. Learn how to set therapy goals.
Diagnosis	A formal identification of a mental health condition, typically using DSM criteria. If you’re using insurance, a diagnosis is usually required, Cromer says. But if you’re self-pay, it’s not mandatory. “If you just want to learn skills and feel better, that’s something your therapist can definitely bypass,” she says.
Confidentiality	The ethical and legal obligation of a therapist to keep session content private—a cornerstone of the therapeutic relationship. There are important exceptions: if a client poses imminent danger to themselves or others, if there’s abuse or neglect of certain vulnerable groups, or if a court order requires disclosure.
Boundaries	The guidelines and limits that define the client-provider relationship—things like out-of-office communication, gift-giving, or contact hours. “It can create a power dynamic between us and expectations that aren’t going to be healthy,” Cromer says of what happens when boundaries aren’t clearly established.
Psychoeducation	When your therapist explains the “why” behind what you’re experiencing—like how anxiety affects the nervous system or why certain patterns develop. It’s not lecture-mode; it’s your therapist giving you a framework for understanding yourself so you can apply it outside of sessions.
Measurement-based care	A practice in which your provider uses standardized tools at regular intervals to track how you’re doing over time—rather than relying on subjective impression alone. It makes progress more visible and helps ensure your care is actually working.
PHQ-9	The Patient Health Questionnaire-9, a nine-question screening tool used to assess the presence and severity of depression symptoms. You may complete this at intake or periodically throughout treatment. Your score helps guide your provider’s approach and track changes over time.
GAD-7	The Generalized Anxiety Disorder 7-item scale, a brief questionnaire used to screen for and measure anxiety symptoms. Like the PHQ-9, it’s commonly used at intake and throughout treatment to monitor progress.

As therapy progresses: Key terms to know

Once you’re in the rhythm of therapy, things get more specific and more nuanced. Some of these concepts your therapist may name directly; others are happening in the background of your sessions, whether they’re discussed or not. Knowing them can help you make sense of what’s shifting—and why.

Term	Definition
Transference	The unconscious redirection of feelings or expectations from past relationships onto your therapist. It’s common and completely normal, Cromer says—but your therapist may name it when it comes up because it often points to something worth exploring.
Countertransference	The flip side of transference—when a therapist has an emotional reaction to a client that’s rooted in their own history or experience. A skilled therapist will recognize and manage it; unaddressed countertransference can affect the quality of care.
Resistance	Conscious or unconscious behaviors that slow or disrupt the therapeutic process—missed sessions, changing the subject, minimizing progress. It’s more common than people think and often unconscious. A skilled therapist will name it in a way that doesn’t feel like a criticism. It’s a sign your therapist is paying attention.
Rupture and repair	A rupture is a break in the therapeutic alliance—a moment where trust is damaged or the relationship feels off. But ruptures can be repaired. “Ideally, your therapist will address the issue directly so you both can discuss and move forward,” Cromer says. How a therapist handles a rupture is often more telling than the rupture itself.
Processing	Mentally and emotionally working through what comes up in therapy. “It doesn’t always stop when the session ends,” Csir says. You might leave feeling more unsettled than when you walked in—that’s often a sign something meaningful was touched, not a sign something went wrong. A good therapist will leave you with coping strategies to carry you through until your next session. “Processing is not clean—it’s not a one and done.”
Coordinated care	When two or more providers involved in your care—like a therapist and a psychiatric provider—actively communicate and collaborate on your treatment. This is meaningfully different from seeing two separate providers who don’t talk to each other. Coordinated care means your providers are working from a shared understanding of your goals and progress, which leads to more cohesive treatment.
Integrated care	A broader model in which mental health care is provided in partnership with physical health care—for instance, a therapist working alongside a primary care physician to address both the psychological and physical dimensions of what someone is experiencing. It’s increasingly recognized that mental and physical health are deeply interconnected, and integrated care reflects that.

Deeper concepts you might encounter during therapy

Not every term in therapy will apply to you—and that’s fine. These concepts tend to come up as the work deepens or in specific types of treatment. You don’t need to understand them all upfront, but recognizing them when they surface can help you stay oriented.

Term	Definition
Attachment styles	Patterns of bonding and relating to others that first form in early childhood and often influence adult relationships. Your attachment style is separate from any diagnosis you might have. “A common misconception is that if you have an anxiety disorder, you definitely have an anxious attachment style,” Cromer says. That’s not always the case.
Cognitive distortions	Thought patterns that act like mental filters—automatic ways your brain interprets situations that may not reflect reality. Common examples include catastrophizing (“this will definitely go wrong”), black-and-white thinking (“if it’s not perfect, it’s a failure”), and mind reading (“they must think I’m annoying”). They’re especially common with anxiety and depression, and identifying and challenging them is a core part of CBT, Cromer says.
Trauma-informed care	A framework that acknowledges how trauma shapes a person’s experience and behavior—and builds safety and trust into the therapeutic relationship as a result. It doesn’t mean every session is about trauma; it means your provider understands how past experiences can show up in the present, including during major life moments like a new job, a wedding, or the loss of a loved one—sometimes before you’ve made that connection yourself.
Window of tolerance	The optimal emotional zone where you can process difficult feelings without becoming overwhelmed or shutting down. “Having a window of tolerance allows the client to feel comfortable and safe expressing what they need to express, feeling what they need to feel,” Cromer says. Therapy often involves gradually expanding this window.
Grounding	Techniques that bring you back to the present moment when emotions feel overwhelming—often using the five senses. “Grounding techniques keep us in the present moment and reconnect with it,” Csir says. They can slow a racing mind and help regulate your nervous system in real time.
Plateau	A phase where progress feels stalled or you feel “stuck.” It doesn’t mean therapy has failed. “Plateauing in and of itself is not a bad thing,” Csir says. “Sometimes it’s super important to take a moment, breathe, and reflect upon our progress and be like, where do I want to go next?”
Regression	Sliding back into old habits or coping patterns. “It’s part of life,” Csir says. “It’s what we do afterward that matters. If we keep falling back into old habits, then we’ve got to ask ourselves, is what we’re asking for too much at this time? Do we need to make another change?”
CBT (Cognitive Behavioral Therapy)	One of the most widely researched therapy modalities, CBT focuses on identifying and changing the thought patterns that drive difficult emotions and behaviors. It tends to be structured and goal-oriented.
DBT (Dialectical Behavior Therapy)	Originally developed for borderline personality disorder, DBT has since proven effective for a range of conditions involving emotional dysregulation. It combines cognitive-behavioral techniques with mindfulness and emphasizes balancing acceptance with change.
ACT (Acceptance and Commitment Therapy)	A mindfulness-based approach that focuses on accepting difficult thoughts and feelings rather than fighting them—and committing to actions that align with your values.
EMDR (Eye Movement Desensitization and Reprocessing)	A structured therapy used primarily for trauma and PTSD, in which a client recalls distressing experiences while following a therapist’s bilateral stimulation (often eye movements). It’s designed to reduce the emotional charge of traumatic memories.

When therapy ends: Key terms to know

Therapy doesn’t have to be lifelong. “I want you to be as independent as possible,” Csir says. That might mean sessions become less frequent, shift to maintenance, or end altogether. The terminology in this phase can feel more final than it usually is—here’s what it actually means.

Term	Definition
Progress	Movement toward better mental health—which looks different for everyone. It might mean fewer symptoms, less impairment in daily life, or a stronger ability to use the coping strategies you’ve built in sessions. “You’re getting closer to experiencing each day within your window of tolerance,” Cromer says.
Termination	Despite the word, termination isn’t necessarily permanent. It refers to a planned pause in therapy agreed upon by both client and provider—usually when a client has shown symptom stability for at least five to six weeks, Cromer says. “It can be a permanent decision not to go back to therapy or not.”
Maintenance sessions	Follow-up sessions that occur after the active treatment phase ends. “Some people view it as a tune-up,” Cromer says—a chance to check in, reinforce skills, and address anything that’s come up since formal therapy concluded.
Setback	A temporary slip into old patterns. This doesn’t automatically mean you need to return to regular therapy. “When in reality it’s like, no, you’ve got this,” Csir says. Setbacks are normal and don’t erase the progress you’ve made.
Relapse	When a setback becomes more sustained—old habits, behaviors, or patterns returning consistently rather than temporarily, and coping strategies that once worked start to fall short. If you find yourself regularly outside your window of tolerance, that’s a good sign to return to therapy, Csir says.

Final thoughts

You don’t need to memorize any of this. Keep it bookmarked, refer back when something comes up in a session that you want to understand better, and—most importantly—don’t hesitate to ask your therapist to explain a term in plain language if it’s unclear. That’s not a detour from the work. It’s part of it.