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  Trinity

  noun
• trinity
  trinity

  noun

  a group of three

Trinity

American  

[trin-i-tee] / ˈtrɪn ɪ ti /

noun

plural

Trinities

1. Christianity.

   1. Also called Blessed Trinity.  Also called Holy Trinity.  the Trinity. the union of three persons (Father, Son, andHoly Spirit ) in one Godhead, or the threefold personality of the one Supreme Being.

   2. a representation of this in art.

      Rublev’s Trinity is one of the more famous icons.

2. Trinity Sunday.

3. trinity,

   1. a group of three; triad.

      The region is hampered by an unholy trinity of extremes—extreme climate, extreme poverty, and extreme ideology.

      The 15th century saw the triumph of physics in the trinity of Copernicus, Galileo, and Newton.

   2. triunity.

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trinity ¹ British  

/ ˈtrɪnɪtɪ /

noun

1. a group of three

2. the state of being threefold

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Trinity ² British  

/ ˈtrɪnɪtɪ /

noun

1. Also called: Holy Trinity.   Blessed Trinity.  Christian theol the union of three persons, the Father, Son, and Holy Spirit, in one Godhead

2. See Trinity Sunday

3. a religious order founded in 1198

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Trinity Cultural  

1. A doctrine of Christianity that there is one God and three divine persons in the one God: the Father, the Son (Jesus), and the Holy Spirit.

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Etymology

Origin of Trinity

First recorded in 1175–1225; Middle English Trinite, from Old French, from Late Latin trīnitās “triad, trio, the Trinity”; equivalent to trine + -ity

Explanation

A trinity is a unit made up of three — like the famous Christian trinity of the Father, the Son, and the Holy Spirit. The prefix tri — which can also be found in triangle — is a clue that this word has to do with the number three. If three people are in charge of a project together, they could be considered a trinity, and a three-person band could be called a trinity.

Example Sentences

JSerra 3, Orange Lutheran 1: Liliana Escobar recorded 13 strikeouts and gave up three hits in the Trinity League win.

From Los Angeles Times • May 1, 2026

The three holes also resembled the Holy Trinity, representing the Father, Son and Holy Spirit.

From Salon • Apr. 28, 2026

Santa Margarita, trying to position itself for an at-large baseball playoff berth from the Trinity League, helped its cause on Friday with a 10-9 win over Orange Lutheran, ranked No. 1 by The Times.

From Los Angeles Times • Apr. 24, 2026

The church is the clearest example of what theorists of geopolitics call “soft power,” said Massimo Faggioli, a church historian and professor at Trinity College Dublin.

From The Wall Street Journal • Apr. 23, 2026

Our next game was on Saturday but we all had to go to school first and then take a school bus downtown to Trinity.

From "Slam!" by Walter Dean Myers