1.Definition: a category falling within certain defined limits

Category: General

2.Definition: a support projecting from a wall (as to hold a shelf)

Category: Objects

3.Definition: either of two punctuation marks ([ or ]) used to enclose textual material

Category: General

4.Definition: either of two punctuation marks (`<' or `>') used in computer programming and sometimes used to enclose textual material

Category: General