1. (interj., adv., & n.) An expression used at the end of prayers, and meaning, So be it. At the end of a creed, it is a solemn asseveration of belief. When it introduces a declaration, it is equivalent to truly, verily.

2. (v. t.) To say Amen to; to sanction fully.

OK Roger absolutely affirmative affirmative attitude affirmativeness agreed all right alright alrighty as you say assuredly aye be it so by all means certainly da done exactly fine good good enough hear indeed indeedy it is that ja just so mais oui most assuredly naturally naturellement nod nod of assent of course okay oui positively precisely quite rather really right right as rain right you are righto so be it so is it so it is sure sure thing surely that is so thumbs-up to be sure truly very well well and good why yes yea yea-saying yeah yep yes yes indeed yes indeedy yes sir yes sirree you are right you bet you said it you speak truly