yes (used in affirmation or assent).

indeed

Yea, and he did come.

not only this but even

a good, yea, a noble man.

an affirmation; an affirmative reply or vote.

a person who votes in the affirmative.

adverb

absolutely , agreed , all right , assuredly , aye , gladly , indubitably , roger , undoubtedly , unquestionably , willingly

noun

aye , affirmative , indeed , okay , truly , vote , yeah , yes