From WordNet (r) 3.0 (2006) [wn]:
crowded
adj 1: overfilled or compacted or concentrated; "a crowded
theater"; "a crowded program"; "crowded trains"; "a young
mother's crowded days" [ant: uncrowded]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
crowded \crowded\ adj.
1. overfilled or compacted or concentrated; filled to excess;
as, a crowded program. Opposite of uncrowded.
Note: [Narrower terms: full, jammed, jam-packed, packed]
[WordNet 1.5]
2. filled with a crowd; as, a crowded marketplace.
[PJC]
3. having an uncomfortable density of people; filled to
excess with people; as, crowded trains; a crowded theater.
[PJC]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Crowd \Crowd\ (kroud), v. t. [imp. & p. p. Crowded; p. pr. &
vb. n. Crowding.] [OE. crouden, cruden, AS. cr[=u]dan; cf.
D. kruijen to push in a wheelbarrow.]
1. To push, to press, to shove. --Chaucer.
[1913 Webster]
2. To press or drive together; to mass together. "Crowd us
and crush us." --Shak.
[1913 Webster]
3. To fill by pressing or thronging together; hence, to
encumber by excess of numbers or quantity.
[1913 Webster]
The balconies and verandas were crowded with
spectators, anxious to behold their future
sovereign. --Prescott.
[1913 Webster]
4. To press by solicitation; to urge; to dun; hence, to treat
discourteously or unreasonably. [Colloq.]
[1913 Webster]
To crowd out, to press out; specifically, to prevent the
publication of; as, the press of other matter crowded out
the article.
To crowd sail (Naut.), to carry an extraordinary amount of
sail, with a view to accelerate the speed of a vessel; to
carry a press of sail.
[1913 Webster]