What does trig mean?
Trig is a concise word with several distinct uses. As a verb, it most commonly means to groom an animal, such as a horse, for showing or competition. Informally, it can also mean to prepare or dress oneself so that one looks neat, attractive, and ready for an event. In schools and casual conversation, trig is an abbreviation for trigonometry, the branch of mathematics concerned with the relationships between the sides and angles of triangles. As an adjective, trig is chiefly British and dialectal, meaning brisk, lively, or energetic, and in more modern informal usage, smart and fashionable. Although the mathematical abbreviation may initially seem to be the best-known meaning of the word, “trig” and “trigged” are widely understood as verbs associated with grooming and preparation. The word is therefore useful as an example of how a single form can preserve unrelated meanings while remaining familiar in both ordinary conversation and academic settings.
To groom an animal, especially a horse, or informally to prepare and make oneself or someone else look presentable.
"He trigged the dog before taking it to the competition."
The preparation and grooming of a person is informal and often implies attention to clothing or appearance.
An informal abbreviation for trigonometry.
"We have a trig test on Friday."
Common in educational and casual contexts; it normally functions as an uncountable noun.
Chiefly regional: brisk, lively, or nimble; informally, smart or fashionable.
"The team was quick and trig in the second half."
This use is especially associated with British and dialectal English and may sound dated to some speakers.
The mathematical sense is normally uncountable, so the plural is rare.
"The archive contains several trigs from different school years."
Trig began as shorthand for trigonometry, but today its commonest verb sense means getting someone—or a horse—ready for the spotlight.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does trig come from?
The mathematical noun is an informal shortening of trigonometry, which comes from Greek trigonometria, a term associated with trigonon, “triangle,” and trigonos, “three-angled.” Its relatives include trigonometric, triangle, and trigone. The verb and adjective have separate historical developments and are not simply shortened forms of trigonometry; the precise origins of those older senses are less certain.
Related word forms
How trig is actually used
The verb is informal when applied to people and is especially associated with preparing or making someone look presentable. The mathematical noun is common in schools and informal speech. The adjective is regionally restricted and may sound old-fashioned or dialectal outside Britain.
Easily confused with trig
Trick means a deceptive act or a deceptive method, whereas trig usually means to groom or prepare and, as a mathematical abbreviation, refers to trigonometry.