|1.||[ noun ] a small room large enough to admit entrance|
|2.||[ noun ] an assured victory (especially in an election)|
|3.||[ noun ] an operative who initiates his own defection (usually to a hostile country) for political asylum|
|Related terms:||secret_agent deserter|
|4.||[ noun ] person who walks in without having an appointment|
"the emergency room was overrun with walk-ins"
|Related terms:||person walk_in|
|5.||[ 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"