Noun has 4 senses

• walk-in(n = noun.person) - person who walks in without having an appointment; "the emergency room was overrun with walk-ins"

Derived form verb walk in₁

• walk-in(n = noun.person) - an operative who initiates his own defection (usually to a hostile country) for political asylum;


• walk-in(n = noun.event) waltz - an assured victory (especially in an election);


• walk-in(n = noun.artifact) - a small room large enough to admit entrance;

Adjective has 1 sense

• walk-in(s = adj.all) - (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"