From WordNet (r) 3.0 (2006) [wn]:
bounds
n 1: the line or plane indicating the limit or extent of
something [syn: boundary, bound, bounds]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
bounds \bounds\ n.
1. the line or plane indicating the limit or extent of
something; as, the fotball was caught out of bounds.
Syn: boundary, bound.
[WordNet 1.5]
2. the greatest possible extent or degree of something.
Syn: limit, boundary.
[WordNet 1.5]