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  Trinity

  noun
• trinity
  trinity

  noun

  a group of three

Trinity

American  

[trin-i-tee] / ˈtrɪn ɪ ti /

noun

Trinities plural

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

Founded in 1970 by Trinity College Cambridge, the park has been responsible for breakthroughs including cancer drugs, Bluetooth technology and mobile phone chips.

From BBC • May 19, 2026

At the Consumer Electronics Show in January, he debuted an AI-equipped, three-wheeled electric vehicle named Trinity designed to serve as a rolling office.

From The Wall Street Journal • May 18, 2026

The newly identified manuscript was discovered by medieval manuscript experts Dr. Elisabetta Magnanti and Dr. Mark Faulkner of Trinity College Dublin.

From Science Daily • May 17, 2026

The Braves closed the regular season with 11 straight wins and a Trinity League title, but were punished when the Southern Section Division 1 playoff pairings came out Friday.

From Los Angeles Times • May 9, 2026

In 1667, Newton was elected to a minor Fellowship at Trinity, which would automatically become a major Fellowship when he became an MA in 1668.

From "The Scientists" by John Gribbin