- Enter a word for the dictionary definition.
From The Collaborative International Dictionary of English v.0.48:
Outsider \Out`sid"er\, n. 1. One not belonging to the concern, institution, party, etc., spoken of; one disconnected in interest or feeling. [Recent] --A. Trollope. [1913 Webster] 2. A locksmith's pinchers for grasping the point of a key in the keyhole, to open a door from the outside when the key is inside. [1913 Webster] 3. A horse which is not a favorite in the betting. [Cant] [1913 Webster]