folder

noun

fold·​er ˈfōl-dər 

1

: one that folds

2

: a folded printed circular

3

a

: a folded cover or large envelope for holding or filing loose papers

b

: an organizational element of a computer operating system used to group files or other folders together

Synonyms of folder

• booklet
• brochure
• leaflet
• flyer
• pamphlet

Examples of folder in a Sentence

a folder offering tips for heating one's home efficiently

Recent Examples on the Web

Categorize each cube With organization being their key function, think of each cube as a filing folder. —Rachel Chang, Condé Nast Traveler, 26 Jan. 2026

Be thoughtful about sensitive items Consider redacting highly sensitive data (like customer-specific pricing) when appropriate, and carefully manage access to the most confidential folders. —Allbusiness, Forbes.com, 24 Jan. 2026

No one got a look inside my magic folder. —Tim Carter, Hartford Courant, 24 Jan. 2026

Inside a yellow folder in her new desk drawer, Ritter discovered black-and-white family photos, several postcards, golf scorecards from the 1940s and a plane ticket from Oklahoma City to Tulsa, per News Channel 8. —Toria Sheffield, PEOPLE, 18 Jan. 2026

Word History

First Known Use

1552, in the meaning defined at sense 1

Phrases Containing folder

• sub-folder

Rhymes for folder

• bolder
• bowlder
• colder
• golder
• holder
• molder
• moulder
• older
• polder
• shoulder
• beholder
• bondholder

Kids Definition

folder

noun

fold·​er ˈfōl-dər 

1

: one that folds

2

: a printed circular of folded sheets

3

a

: a folded cover or large envelope for holding loose papers

b

: an element of a computer operating system used to group and organize files