round file

noun (1)

Definition of round file

 (Entry 1 of 2)

: a file of circular cross section used for filing round holes — compare rattail file

round file

noun (2)

Definition of round file (Entry 2 of 2)

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First Known Use of round file

Noun (2)

1943, in the meaning defined above

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The first known use of round file was in 1943

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