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

There may be good reasons not to acknowledge or respond to an email, such as simply not seeing an email that went into a spam folder. — Austin Sarat, The Conversation, 13 Aug. 2026

Honestly, our phones probably have superior tech at this point, but there is something special about bringing a digital camera with you to college parties and uploading the folder the next day (for better or worse). — Gina Vaynshteyn, StyleCaster, 11 Aug. 2026

The shelves are stocked with crayons, markers, construction paper, notebooks, folders, binders, dry-erase markers and other classroom materials. — Tori Mason, CBS News, 6 Aug. 2026

There are three new models, Galaxy Z Fold8 Ultra, Galaxy Z Flip8 and the strikingly different Galaxy Z Fold8, which has a different shape from any previous Galaxy folder. — David Phelan, Forbes.com, 6 Aug. 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