English Reference

Word

binder

US/ˈbaɪndɝ/

UK/bˈaɪndɐ/

Countable noun

Definition

n. a person or thing that holds other people or things together. You use it for a book folder, a glue, or a leader who keeps a group united.

n. an agent or substance that binds, holds together, or unites separate elements. In computing, it refers to a program that links compiled code; in law, a document that secures an obligation.

Examples

“She put her notes in a plastic binder.”

“The project manager acted as a binder, keeping the design and engineering teams aligned on the deadline.”

“The legal binder secured the transaction terms, ensuring that both parties remained committed to the sale until the final closing date.”

Examples

simple

“She put her notes in a plastic binder.”

contextual

“The project manager acted as a binder, keeping the design and engineering teams aligned on the deadline.”

complex

“The legal binder secured the transaction terms, ensuring that both parties remained committed to the sale until the final closing date.”

Real-World Examples

“Most female workers in the industry were "binders" who sewed leather pieces together by hand.”
Phys.org 28 Sept 2026
“Traditional ink was generally made from soot, water, and a binder such as gum Arabic.”
ScienceDaily 26 Sept 2026

Etymology

From Middle English byndere; equivalent to bind + -er.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

binder(B2)

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference