'walk-in' definitions:
Definition of 'walk-in'
(from WordNet)
adjective
(of e.g. closets or refrigerators) extending very far enough back to allow a person to enter; "a deep walk-in refrigerator"; "walk-in closets"
noun
Person who walks in without having an appointment; "the emergency room was overrun with walk-ins"
noun
An operative who initiates his own defection (usually to a hostile country) for political asylum
noun
An assured victory (especially in an election) [syn: walk- in, waltz]
noun
A small room large enough to admit entrance