'Indeed' definitions:

Definition of 'indeed'

(from WordNet)
adverb
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"; "he did so do it!" [syn: indeed, so]
adverb
(used as an interjection) an expression of surprise or skepticism or irony etc.; "Wants to marry the butler? Indeed!"

Definition of 'Indeed'

From: GCIDE
  • Indeed \In*deed"\, adv. [Prep. in + deed.] In reality; in truth; in fact; verily; truly; -- used in a variety of senses. Esp.: (a) Denoting emphasis; as, indeed it is so. (b) Denoting concession or admission; as, indeed, you are right. (c) Denoting surprise; as, indeed, is it you? Its meaning is not intrinsic or fixed, but depends largely on the form of expression which it accompanies. [1913 Webster]
  • The carnal mind is enmity against God; for it is not subject to the law of God, neither indeed can be. --Rom. viii. 7. [1913 Webster]
  • I were a beast indeed to do you wrong. --Dryden. [1913 Webster]
  • There is, indeed, no great pleasure in visiting these magazines of war. --Addison. [1913 Webster]

Synonyms of 'indeed'

From: Moby Thesaurus