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Meaning of walk-in

walk-in

Pronunciation: (wôk'in"), [key]
— adj.
  1. of or pertaining to persons who walk into a place from the street, esp. irregularly or without an appointment: walk-in customers; walk-in sales; a walk-in patient.
  2. large enough to be walked into: a walk-in kitchen.
—n.
  1. a person, as a customer, patient, or interviewee, who arrives without an appointment: Many of the clinic's patients are walk-ins who suddenly need help.
  2. something large enough to be walked into, as a closet.
  3. an assured victory in an election or other contest.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.