In truth (often tends to intensify):
— They said the car would break down and indeed it did.
— It is very cold indeed.
— Was indeed grateful.
— Indeed, the rain may still come.
Roget 535: affirmatively etc. adj.; in the affirmative. with emphasis, ex-cathedra, without fear of contradiction. as God is my witness, I must say, indeed, i' faith, let me tell you, why, give me leave to say, ... show more
used as an interjection An expression of surprise or skepticism or irony etc..
Moby thesaurus: OK, Roger, a fortiori, above all, absolutely, actually, all joking aside, all right, all the more, alright, alrighty, amen, and no mistake, as you say, assuredly, at all events, at any rate, aye, by all means, certainly ... show more.
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