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

According to the couple’s daughter, like Pearl, Cotliar loved being a grandparent and kept folders with photos and accomplishments of his grandchildren. — Emily St. Martin, Los Angeles Times, 9 July 2026

On paper, the build aims to combine a more solid, confidence-inspiring lockup with the kind of smooth deployment EDC users expect from a modern premium folder. — New Atlas, 9 July 2026

Microsoft is addressing a Windows 11 bug that caused a folder to take up several gigabytes of storage space. — Emma Roth, The Verge, 7 July 2026

Junk folder warning should not be ignored This email landed in our junk folder, and that is worth noting. — Kurt Knutsson, FOXNews.com, 6 July 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