Adjectival form of out of bounds.

The limits of a piece of land as defined by reference to lines and/or points on the land.

(idiomatic) That which one is prohibited from entering. / (idiomatic) Beyond the bounds of civility or morality; extremely unreasonable.

(sports) A sideline marking the edge of a playing field or court. / (sports) An instance of a player or the ball going out of bounds.

(programming) A variable that is associated with a value, and therefore a variable that has an allocated storage location. If the programming language implements a representation of a canonical unknown value, infinity, etc., the value bound to the variable may be one of these.

(of a potted plant) Having outgrown the size of the pot, such that its roots have no more room to grow.

(physics) A composite of two or more particles that behaves as a single particle.

(linguistic morphology) A morpheme that can only occur when bound to a root morpheme. For example: cran- (as in cranberry), -ed, -ing, -ly.

plural of bound morpheme

(of a book) Having only the back and corners bound in leather