a person or thing that folds.
a printed sheet, as a circular or timetable, folded into a number of usually pagelike sections.
a folded sheet of light cardboard used to cover or hold papers, letters, etc., as in a file.
Computers. directory(def 4a).

Origin of folder

First recorded in 1545–55; fold1 + -er1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for folder

pocket, binder, file, case, sheath, wrapper, portfolio, wrapping

Examples from the Web for folder

Contemporary Examples of folder

Historical Examples of folder

  • "Pardon," said the guard to me, "but I see no harm," and he handed her the folder.

  • Daniel Stern slapped a folder down on his desk and got to his feet.

    The Best Made Plans

    Everett B. Cole

  • "Friend of mine," Ringg said, and Bart proffered his folder.

    The Colors of Space

    Marion Zimmer Bradley

  • Which is how I happen to spot this folder with the halftone cut on it.

  • Her folder was full of notations by case worker after case worker.


    Laurence Mark Janifer (AKA Larry M. Harris)

British Dictionary definitions for folder



a binder or file for holding loose papers, etc
a folded circular
a machine for folding printed sheets
a person or thing that folds
computing another name for directory (def. 5)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for folder

1550s as "one who folds;" 1911 as "folding cover for loose papers;" agent noun from fold (v.).

Online Etymology Dictionary, © 2010 Douglas Harper