Introducing an important or noteworthy point in an argument or proof, or in a series of statements. Also now then.

Usually with modal verb, esp. may. In concessive use: indeed, certainly. how well (that): see how, adv. 11a.

Expressing assent or agreement. Cf. yessir, adv., yes-man, n., yes-woman, n., etc. Expressing concessive assent or agreement (sometimes…

With a preceding interjection. ah well.

Used to introduce a remark or statement, sometimes implying that the speaker or writer accepts a… With a following expression, esp. in well now (cf…

With concessive force (usually followed by an adversative clause) = It is true, it must be admitted.

With a preceding interjection. oh well.

Reduplicated. Expressing surprise, anticipation, resignation, or acquiescence. Scottish and Irish English (northern). (a) well a well. Now rare.