Usually,limit or boundary: the bounds of space and time; within the bounds of his estate; within the bounds of reason.
something that limits, confines, or restrains.
territories on or near a boundary.
land within boundary lines.
a number greater than or equal to, or less than or equal to, all the numbers in a given set. Cf. greatest lower bound, least upper bound, lower bound, upper bound.
The ball bounced out of bounds.
beyond the official boundaries, prescribed limits, or restricted area:The ball bounced out of bounds.
forbidden; prohibited:The park is out of bounds to students.
—v.t.
to limit by or as if by bounds; keep within limits or confines.