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

In the Thomas Fisher Rare Book Library in Toronto, Canada, Margaret Atwood, award-winning dystopian fiction author, fished out an article from a research folder. —Will Croxton, CBS News, 9 Feb. 2026

Smart Planning Platforms Are Replacing Wedding Binders The time has passed when people used full folders and handwritten to-do lists. —Craig Lebrau, USA Today, 8 Feb. 2026

Labels make filing faster and less overwhelming by clearly defining folders for important documents, bills, warranties, school papers, and household records. —Mary Cornetta, Better Homes & Gardens, 6 Feb. 2026

Agents are sandboxed and limited to specific folders or branches, with permission required for elevated actions such as network access. —Neetika Walter, Interesting Engineering, 5 Feb. 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