n.

1. 三个（人或物）一组；三位一体[C][S1][（+of）]
   carry on war against the unholy trinity of poverty, illiteracy, and disease

   向贫穷、文盲、疾病这邪恶的三位一体开战

2. （大写）（基督教）三位一体[the S]
3. （大写）复活主日（= Trinity Sunday）
4. 三，三倍

n.

1. (the Trinity or the Holy Trinity) the three persons of the Christian Godhead; Father, Son, and Holy Spirit.
2. a group of three people or things.