WordWeb Online

1. (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"

1. Person who walks in without having an appointment
   "the emergency room was overrun with walk-ins"
    
2. An operative who initiates his own defection (usually to a hostile country) for political asylum
    
3. An assured victory (especially in an election)
   - waltz
    
4. A small room large enough to admit entrance

1. Enter by walking
   "She walks in at all hours, as if she lived here"

Derived forms: walked in, walking in, walk-ins, walks in

See also: deep

Type of: come in, defector, deserter, enter, get in, get into, go in, go into, individual, intelligence agent, intelligence officer, mortal, move into, operative, person, room, secret agent, somebody, someone, soul, spook [informal], spy, triumph, victory

Encyclopedia: Walk-in