[exclamation] [formal] - said or sung by Jews or Christians at the end of a prayer or sometimes a religious song to express agreement with what has been saidMay the grace of our Lord Jesus Christ be with you all. Amen.You can say amen to that to show that you agree strongly with something that someone has just said."Thank goodness we didn't go." "Amen to that!"
AMEN
Meaning of AMEN in English
Cambridge English vocab. Кембриджский английский словарь. 2012