| 1. | Also called Blessed Trinity, Holy Trinity. the union of three persons (Father, Son, and Holy Ghost) in one Godhead, or the threefold personality of the one Divine Being. |
| 2. | a representation of this in art. |
| 3. | Trinity Sunday. |
| 4. | (lowercase ) a group of three; triad. |
| 5. | (lowercase ) the state of being threefold or triple. |
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.