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To enter some establishment or event as a casual attendee. We encourage all patients to make appointments, but we do offer a clinic in the morning where you can simply walk in. We've had people walking in all evening, so we actually had a decent crowd by the end of the night.
walk in(to something)
to enter something on foot. We walked into the parking garage and tried to find our car. He walked in and sat down.
walk right in
to enter on foot without hesitation. He went up to the door, opened it, and walked right in. Please just walk right in!
1. To enter something by walking: The door was open, so we walked in and took our seats.
2. To enter casually, easily, or unawares: That new student walked in off the street and became the starting quarterback. I don't think you can simply walk in and take over the responsibilities of this new job.
3. walk in on To walk in and see some private situation or someone in a private situation: They were embarrassed when I walked in on them making a mess in the kitchen. The guard walked in on a robbery.