Definition of "walk-in" in English

noun

1. A facility or room which may be walked into:

2. Someone who walks in (to a place, etc):

3. A demonstration or protest in which the participants assemble outside a facility, gain media exposure, and enter the facility in unison.

4. (parapsychology) A person whose original soul has departed the body and been replaced with another.

adjective

1. That may be walked into:

2. (of a thief or theft) Gaining access through unlocked doors.

   • … (locations, that are vulnerable to walk-in robbery), which makes isolation of the value from UCR statistics impossible.

3. (multiplicity slang) A headmate who shows up in a system fully formed.