binder

noun

bind·​er ˈbīn-dər 

1

: a person or machine that binds something (such as books)

2

a

: something used in binding

b

: a usually detachable cover (as for holding sheets of paper)

3

: something (such as tar or cement) that produces or promotes cohesion in loosely assembled substances

4

: a temporary insurance contract that provides coverage until the policy is issued

5

: something (such as money) given in earnest

also : the agreement arrived at

6

: a tobacco leaf wrapped between the filler and wrapper of a cigar

Examples of binder in a Sentence

The egg in the recipe acts as a binder.

Recent Examples on the Web

The mash is then mixed with a creamy binder, such as Greek yogurt or mayo, along with seasonings of your choice. — Amber Raiken, Verywell Health, 25 Sep. 2026

MILKist led the initial research and technical formulation, striving to make a sufficiently strong sheet from 100 percent barley straw without adding other fibers or binders. — Alexandra Harrell, Footwear News, 23 Sep. 2026

Sheets of plastic had been place in the Great American Ball Park visiting clubhouse since the day before, attached to the ceiling with binder clips and folded up above the lockers, ready to be unfurled after the game for the Dodgers’ celebration. — Maddie Lee, Los Angeles Times, 17 Sep. 2026

The precise composition of ancient Egyptian paints, binders, adhesives, and similar materials used to make artifacts is largely unknown, in part because a full analysis would require taking samples that would damage those valuable artifacts. — Jennifer Ouellette, ArsTechnica, 11 Sep. 2026

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Phrases Containing binder

• ring binder

Rhymes for binder

• blinder
• finder
• grinder
• kinder
• minder
• pinder
• bookbinder
• factfinder
• pathfinder
• reminder
• sidewinder
• viewfinder

Kids Definition

binder

noun

bind·​er ˈbīn-dər 

1

: a person or machine that binds something (as books)

2

: a cover for holding together loose sheets of paper

3

: something that holds other substances together

use egg as a binder in meat loaf

Medical Definition

binder

noun

bind·​er ˈbīn-dər 

1

: a broad bandage applied (as about the chest or abdomen) for support

a breast binder

an obstetrical binder

2

: a substance (as glucose or acacia) used in pharmacy to hold together the ingredients of a compressed tablet

Legal Definition

binder

noun

bind·​er ˈbīn-dər 

1

: a temporary insurance contract that provides coverage until the policy is issued

2

: a receipt for money paid to the owner of real estate or to the owner's agent to secure the right to purchase the real estate upon agreed terms

also : the money itself