/ay"men", ah"men"/ , interj.
1. it is so; so be it (used after a prayer, creed, or other formal statement to express solemn ratification or agreement).
adv.
2. verily; truly.
n.
3. an utterance of the interjection "amen."
4. a musical setting for such an utterance.
5. an expression of concurrence or assent: The committee gave its amen to the proposal.
[ bef. 1000; ME, OE amen certainty, certainly ]