to file in
- phrasal verb
- The monks file in first, followed by the guests who are directed to separate tables.
The cinder blocks snack bar had no windows, only the vents Out the screen door part, people clutching trays of hot food filed in silver sleeves.
- The cinder blocks snack bar had no windows, only the vents Out the screen door part, people clutching trays of hot food filed in silver sleeves.
Examples
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By twos and threes, the workers filed in and waited their turn.
Fiction book (1992) -
Watch the prisoners file in.
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File in behind me, please.
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The other five followed the first two in single file, arms swinging in unison.
Fiction book (1999) -
"Thank you, thank you," the sisters would chant as the people filed in.
Fiction book (1999) -
The locksmith popped the lock on Dr. V's double doors, and we filed in without saying a word.
Fiction book (1998) -
As the two sit in the lunchroom, the other pickers file in and cast odd glances over at Conrad.
Fiction book (1999) -
CHRIS: The fans are filing in with great anticipation as the Charlotte Banshees prepare to host game one of their WUBA playoff series against the Houston Gallop.
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The students are asked to file in quietly and take their seats.
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As the guests filed in, the music began to play softly.
Antonyms
How Fast
Surface Forms
Morphology
The meaning 'to enter a place by moving in a line' is directly and compositionally derived from 'file' (to proceed in an orderly single file) combined with the directional particle 'in' (into). This verb+particle construction is a standard, transparent pattern in English and would be immediately understandable to a B1 learner who knows both constituent meanings.
Etymology
File in comes from the picture of people walking in a single file, one behind the other, to go in somewhere, so it means 'to enter by moving in a line'.