trinity trinity /ˈtrɪnɪti/

noun

1. Three people considered as a unit  ( threesome , triad , trinity , trio )
   three people considered as a unit
   
2. The cardinal number that is the sum of one and one and one  ( deuce-ace , III , leash , tercet , ternary , ternion , terzetto , threesome , tierce , 3 , three , trey , triad , trine , trinity , trio , triplet , troika )
   the cardinal number that is the sum of one and one and one
    I have three cats
   I have three cats
   
   

 Trinity

1. The union of the Father and Son and Holy Ghost in one Godhead  ( Blessed Trinity , Holy Trinity , Sacred Trinity , Trinity )
   the union of the Father and Son and Holy Ghost in one Godhead