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.