Here is the sentence "I walk in once or twice a week, and cycle on the other days".
What does "walk in" mean?
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Sign up to join this communityIt means to go somewhere on foot (by walking) rather than on a bicycle, in a car or on a bus. It probably refers to work, that is, a place of employment:
I live close to the factory, so I walk in every day, then walk back home at night.