Trauma, triggered, narcissist: therapy speak and what the words mean clinically

Therapy speak is the use of psychological and mental-health vocabulary in everyday conversation. Many of its words now carry two meanings: a narrow one set by a classification, a study or a dictionary of psychology, and a wider one that spread through ordinary talk. The psychologist Nick Haslam called that widening “concept creep”. Below, five words (trauma, triggered, narcissist, gaslighting and toxic) are checked against the sources that define them. Nothing here is a rule about how to talk. The point is to know which meaning a sentence is claiming.

• The WHO says around 70% of people worldwide will experience a potentially traumatic event, and only a minority of them, 5.6%, go on to develop post-traumatic stress disorder (PTSD).
• A trigger is, in the APA Dictionary’s definition, “a stimulus that elicits a reaction”, and its example is an event that brings back the memory of a past experience. A meta-analysis published online in 2023 found that warnings about upsetting content raised anxiety beforehand and did not reduce distress afterwards.
• “Narcissist” is a label for a person, not a diagnosis. The DSM-5-TR lists narcissistic personality disorder, while ICD-11 replaced the separate personality disorder types with one graded diagnosis.
• “Gaslighting” comes from a 1938 stage play and its film adaptations. The APA Dictionary of Psychology says the term is usually considered a colloquialism.
• “Toxic” is a metaphor for harm. It is not a diagnostic term.

Checking a word against its classification entry is the same exercise as in our article on burnout: burnout is not a medical diagnosis, although ICD-11 does define and code it as an occupational phenomenon.

What therapy speak is, and what concept creep means

The Cleveland Clinic defines therapy speak as people using “psychological phrases and mental health language in their daily lives”. It says this vocabulary can help people understand their emotions, and that some mental health providers caution against overusing it in personal relationships.

Haslam described the mechanism in a 2016 paper in Psychological Inquiry. He argued that concepts referring to negative experience have widened in two directions: “outward to capture qualitatively new phenomena and downward to capture quantitatively less extreme phenomena”.

• Horizontal creep: a word starts to cover kinds of things it did not name before.
• Vertical creep: a word starts to cover milder cases of the same kind of thing.

He examined six concepts: abuse, bullying, trauma, mental disorder, addiction and prejudice. His verdict is not one-sided. Conceptual change is “inevitable and often well motivated”, he writes, but concept creep “runs the risk of pathologizing everyday experience”. That is the useful way to read the rest of this article. Widening is a documented process, not a failing of the people who use the words.

Trauma: a bad event is not the same as PTSD

The WHO separates the event from what may follow it. Its PTSD fact sheet, dated 11 September 2026, says that around 70% of people globally will experience a potentially traumatic event, such as war, accidents, natural disasters or sexual violence. Only a minority, 5.6%, go on to develop PTSD. An estimated 3.9% of the world population has experienced PTSD at some point in their lives.

PTSD is a diagnosis with three groups of symptoms, which the WHO describes like this:

• Re-experiencing: repeated and unwanted recollections of the traumatic event.
• Avoidance: avoiding situations, activities, thoughts or memories that remind the person of the event.
• Hyperarousal: a heightened sense of danger, even when the person is not at risk.

The word “potentially” matters. Most people who live through such an event do not develop the disorder, so “that was traumatic” and “I have PTSD” are two separate claims.

The professional sources do not draw one fixed line either. The APA Dictionary of Psychology defines trauma as “any disturbing experience that results in significant fear, helplessness, dissociation, confusion, or other disruptive feelings intense enough to have a long-lasting negative effect on a person’s attitudes, behavior, and other aspects of functioning”. That puts the lasting effect inside the definition. The WHO’s “potentially traumatic event” describes the event first and treats the outcome separately.

Haslam’s case study of trauma shows the widening inside psychiatry itself. In his account, the first DSM (1952) used “trauma” for physical causes of brain disorders. DSM-III (1980) recognised PTSD for the first time, and Haslam calls the shift from a physical to a psychological injury “a classic example of horizontal creep”. The DSM-III criterion for a qualifying event required one “outside the range of usual human experience”, and Haslam quotes the manual as saying that “such common experiences as simple bereavement, chronic illness, business losses, or marital conflict” generally did not meet that requirement. Later editions admitted indirect exposure, such as learning that something had happened to close family or friends, which he counts as vertical creep. He adds that DSM-5 partly halted the trend.

He also quotes a definition from the US agency SAMHSA that needs only an event “experienced by an individual as physically or emotionally harmful or threatening”, with lasting adverse effects, and he calls it much broader and more subjective than the DSM-III wording.

So a sentence like “that was traumatic” can sit anywhere on a wide scale. If memories, nightmares or avoidance after a distressing event last a long time or make daily life harder, that is a reason to talk to a doctor or a psychotherapist. The WHO says there are many effective treatments for PTSD.

Triggered: a cue that sets off a reaction, not only an annoyance

The APA Dictionary defines a trigger as “a stimulus that elicits a reaction” and gives this example: an event could be “a trigger for a memory of a past experience and an accompanying state of emotional arousal”. The WHO fact sheet uses the same idea inside PTSD. It describes people who avoid situations, activities, thoughts or memories that remind them of the event, and it says treatment can address “the events, people or places that trigger their traumatic memories”.

In ordinary talk the word stretches further. “That email triggered me” could mean the email annoyed you, or that it set off a reaction tied to something that happened to you. The sentence does not say which. According to Dictionary.com’s slang entry, the popular language of triggering emerged on women’s message boards in the late 1990s and early 2000s, where it warned readers about content such as discussions of eating disorders or self-harm. In the 2010s, it says, “trigger warning” became a more widespread preface in popular media and in classrooms.

That practice has since been tested. In a meta-analysis in Clinical Psychological Science, published online in 2023 and in print in 2024, Victoria Bridgland, Payton Jones and Benjamin Bellet compared results from 12 studies of trigger warnings, content warnings and content notes. The Association for Psychological Science summarised the findings on 12 October 2023.

The paper’s abstract calls the avoidance findings mixed: warnings either had no effect on engagement with the material, or increased it in specific circumstances. It also says the authors discuss limitations and the implications for policy and therapeutic practice.

Two limits matter when you read this result. The meta-analysis tests warnings, not triggers, so it says nothing about what sets off a reaction in a person with PTSD. And according to the APS, most of the 12 studies included a mix of trauma survivors and people with no trauma history, and its summary does not report results for survivors separately.

Narcissist: a word for a person, a diagnosis in one manual and not in another

The Cambridge Dictionary defines a narcissist as “someone who has too much admiration for himself or herself”. That describes how a person comes across. A clinical diagnosis is a different kind of statement, and the two main classification systems handle it differently.

In the DSM, the American system, narcissistic personality disorder is a diagnosis. The APA Dictionary describes it as a long-standing pattern that includes grandiose self-importance, an exhibitionistic need for attention and admiration, and an inability to empathise with the feelings of others. It notes that the disorder is included in DSM-IV-TR, DSM-5 and DSM-5-TR.

The WHO’s ICD treats it differently. ICD-10 gave it no code of its own and lists “narcissistic” as an inclusion term under F60.8, “other specific personality disorders”. ICD-11 changed the approach again. As Bach and First describe it, it replaced the separate personality disorder types with one diagnosis, graded by severity:

• Personality difficulty, which is not itself a disorder.
• Mild personality disorder.
• Moderate personality disorder.
• Severe personality disorder.

Clinicians can add trait domains: negative affectivity, detachment, dissociality, disinhibition and anankastia, plus an optional borderline pattern. A tentative cross-walk in Bach and First’s paper maps the old ICD-10 “narcissistic” category mainly to dissociality, which includes entitlement, grandiosity, an expectation of others’ admiration and attention-seeking, with negative affectivity (dysregulated self-esteem) as a second domain.

So “a narcissist” is a label for a whole person, while a diagnosis is the result of an assessment of a pattern. The DSM names the disorder, and ICD-11 describes its features as trait domains of a graded personality disorder. Only a qualified professional can make that assessment. Who counts as qualified differs by profession and country, and our article on the psychologist, psychotherapist and psychiatrist sets out the differences.

Gaslighting: a word from a play

The APA Dictionary defines the verb to gaslight as “to manipulate another person into doubting their perceptions, experiences, or understanding of events”. It says the term once referred to manipulation so extreme as to induce mental illness or to justify committing the person to a psychiatric institution, but is now used more generally. It is “usually considered a colloquialism, though occasionally it is seen in clinical literature”, for example in reference to the manipulative tactics associated with antisocial personality disorder.

The APA gives the origin as Gaslight, a 1938 stage play and two later film adaptations, from 1940 and 1944. Patrick Hamilton’s play Gas Light premiered at the Richmond Theatre in London on 5 December 1938. In it, a husband goes upstairs each night to search the empty flat for jewels. Lighting the gas lamps up there dims the lights in the rest of the building, and his footsteps in the supposedly empty flat persuade his wife that she is hearing things. He is intent on convincing her that she is going insane. The play reached Broadway in 1941 as Angel Street, and George Cukor directed the 1944 American film.

Merriam-Webster chose “gaslighting” as its 2022 Word of the Year. In its announcement it defined the word as “the act or practice of grossly misleading someone especially for one’s own advantage” and reported that lookups on its site rose 1740% that year. The two dictionaries do not define it identically: one centres on doubting your own perceptions, the other on being misled for someone’s advantage. Both describe something a person does, not a condition a person has.

Toxic: a metaphor for harm

In “toxic relationship” or “toxic parents”, the word is a metaphor: poison standing in for harm. The Cambridge Dictionary lists this as an informal sense, “causing you a lot of harm and unhappiness over a long period of time”. It is not a diagnostic term. It says that something harms, not what is happening, so it covers a partner who belittles, one who controls and one who is only exhausting in the same way.

Projection and attachment style: two more borrowed terms

Two more phrases from therapy come up constantly. “You’re projecting” uses a term from psychoanalytic and psychodynamic theory. The APA Dictionary defines projection as the process by which one attributes one’s own positive or negative characteristics, affects and impulses to another person or group, and says it is often a defence mechanism. In classical psychoanalytic theory, the entry says, projection lets a person avoid seeing their own faults, and a defence mechanism is an unconscious reaction pattern. The projection entry adds that modern usage “has largely abandoned the requirement that the projected trait remain unknown in the self”, and the defence mechanism entry adds that more recent theories see defence mechanisms as normal means of coping with everyday problems and external threats. So “you’re projecting” is a claim about the other person’s inner state: that they are attributing something of their own to someone else. Whether they are unaware of it depends on which account is meant. Our article on defence mechanisms defines twelve of them and explains how projection differs from displacement.

“I’m avoidant” borrows a name from attachment research. The APA Dictionary describes an attachment style as the characteristic way people relate to others in intimate relationships, and says Mary Ainsworth and her colleagues first described the styles in infant–mother relationships. Our article on the four attachment styles explains why the infant classification and the adult questionnaires that borrow its names are separate things.

Using the words more precisely

Nobody needs to talk in clinical language, and Haslam’s point that widening is often well motivated applies here too. A few distinctions keep a sentence honest:

• Describe what happened instead of labelling a person. “She kept telling me I had imagined conversations that I remember clearly” says more than “she is a narcissist”.
• Separate the event from its effects. A distressing experience can be real and serious without being PTSD.
• Say what “triggered” means. “That reminded me of something painful” and “that annoyed me” are different statements.
• Leave diagnoses to clinicians. A diagnosis comes from an assessment, not from a description given by someone else.

Looking up the narrow meaning

A habit that helps with any of these words is to look up the professional meaning and keep it next to the everyday one. Psychology World is built for that kind of check. You look up a term and save it to one of your own lists. Then you drill the list as flashcards, by typing the answer, or as multiple-choice questions once the list has four or more terms. The dictionary entries show how a definition is laid out, and what each study mode does is explained on the home page.