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Synonyms

fastener

American  
[fas-uh-ner, fah-suh-] / ˈfæs ə nər, ˈfɑ sə- /

noun

  1. any of various devices for fastening. fastening.

  2. any of various devices, as a snap or hook and eye, for holding together two objects or parts sometimes required to be separate, as two edges or flaps of a piece of clothing.

  3. a worker who fastens things together.

Other Word Forms

  • unfastener noun

Etymology

Origin of fastener

First recorded in 1620–30; fasten + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The fastener and tool distributor posted net income of $335.5 million, or 29 cents a share, up from $298.1 million, or 26 cents a share, the year prior.

From The Wall Street Journal • Oct. 13, 2025

Fastenal, the fastener maker, reported third-quarter earnings of 29 cents a share, missing analysts’ estimates of 30 cents, as revenue of $2.13 billion match expectations.

From Barron's • Oct. 13, 2025

I rarely had to stop work to go get the perfect part or fastener.

From Seattle Times • Jan. 29, 2024

The British Museum also announced some "significant" new finds made since 2022, including a late Bronze Age dress fastener.

From BBC • Jan. 24, 2024

Then Dad twizzled the gold paper round the kite string like a sandwich-bag fastener.

From "Black Swan Green" by David Mitchell

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.