The Collaborative International Dictionary of English v.0.48:
Congruence \Con"gru*ence\, n. [L. congruentia: cf. OF. cornguence.] Suitableness of one thing to another; agreement; consistency. --Holland. [1913 Webster]WordNet (r) 3.0 (2006):
congruence n 1: the quality of agreeing; being suitable and appropriate [syn: congruity, congruousness, congruence] [ant: incongruity, incongruousness]