file in(to) (something)

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file in(to) (something)

To move or process into a place or thing in a line. After being scolded, the kids filed silently into their classroom. Quick, file in before the show starts!
See also: file

file in(to) (something)

[for a line of people] to move into something or some place. The people filed into the hall quietly. Everyone filed in quietly.
See also: file