I. ˈtri-nə-tē noun
Etymology: Middle English trinite, from Anglo-French trinité, from Late Latin trinitat-, trinitas state of being threefold, from Latin trinus threefold
Date: 13th century
1. : the unity of Father, Son, and Holy Spirit as three persons in one Godhead according to Christian dogma
2. not capitalized : a group of three closely related persons or things
3. : the Sunday after Whitsunday observed as a feast in honor of the Trinity
II. ˈtri-nə-tē geographical name
river E Texas flowing SE into Galveston Bay