triad

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triad

  • /ˈtɹaɪ.æd/

Rhymes with -aɪæd

Where it comes from

PIE word

*tréyes

From Latin triad-, stem of trias (“three, triad”), from Ancient Greek τριάς (triás). By surface analysis, tri- + -ad.

Sense 3 (“branch of a Chinese underground criminal society”) is due to the word being applied by the British authorities to underground society in Hong Kong based on the geometry of the Chinese character, derived from a name used by some of those societies, 三合會 /三合会 (sānhéhuì, “Three Harmonies Society”), referring to the union between heaven, earth, and humanity.

noun triads

  1. A grouping of three. Later artworks showed many animals and gods, some of which were clearly identified with heavenly body. They often included the symbolic triad of Sun, Moon, and Venus.

    Similar: threesome, trine, trinity, trio, triplet, troika, triumvirate, leash, tern, ternary, ternion, threeness

  2. A romantic or sexual relationship between three individuals; a throuple.

    Similar: threesome, trine, trinity, trio, triplet, troika, triumvirate, leash, tern, ternary, ternion, threeness

  3. A word of three syllables. In his general deportment he was pompous and important, affecting a species of florid elocution, which often became ridiculous from his misarranging the triads and quaternions with which he loaded his sentences.

    Similar: trisyllable

  4. A branch of a Chinese underground criminal society, mostly based in Hong Kong. The point — and the symbolism — was that so long as the informer kept his mouth shut he was alive. Harry had seen the result of zjuk carried out by the Tapei Triad on a poor jerk they found in a back street of Tan-shui. They had used broad nail heads that didn’t make such big holes on their way in.
  5. On a CRT display, a group of three neighbouring phosphor dots, coloured green, red, and blue.
  6. A chord consisting of a root tone, the tone two degrees higher, and the tone four degrees higher in a given scale OR any chord with three notes.

Thesaurus

Closest in meaning: trinity, trio, threesome, trine, ternary, ternion, three, tierce, tercet, trey, terzetto, triplet, common chord, leash, troika, deuce-ace

Translations

Every language

noun grouping of three

Españoltríada, triada, tríade
Françaistriade, trio
DeutschTriade
Italianotriade
Ελληνικάτριάδα triáda
Русскийтриа́да triáda

noun underground society

한국어삼합회 samhaphoe
日本語三合会 sangōkai
中文三合會 /三合会 sānhéhuì, 黑社會 /黑社会 hēishèhuì
Françaistriade
DeutschTriade
Italianotriade
Русскийтриа́да triáda
Tiếng ViệtHội Tam Hoàng, xã hội đen

noun musical chord

한국어삼화음 samhwa'eum
中文三和弦 sānhéxián
DeutschDreiklang
Tiếng Việtliên ba

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MLA

"triad." Wiktionary, via Micwyn, micwyn.com/word/triad. Accessed 6 Nov. 2026.

APA

triad. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/triad

Chicago

"triad." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/triad.

BibTeX
@misc{triad_2026,
  title = {triad},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/triad},
  urldate = {2026-11-06}
}