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Synonyms

fasten

American  
[fas-uhn, fah-suhn] / ˈfæs ən, ˈfɑ sən /

verb (used with object)

  • fastens,
    present (3rd person singular)
  • fastened,
    past participle,  past
  • fastening
    present participle
  1. to attach firmly or securely in place; fix securely to something else.

    Synonyms:
    tether, tie, bind, clamp, rivet, clinch, clasp, hook, link, connect
  2. to make secure, as an article of dress with buttons, clasps, etc., or a door with a lock, bolt, etc.

  3. to enclose securely, as a person or an animal (usually followed byin ).

    to fasten a monkey in a cage.

  4. to attach, associate, or connect.

    to fasten a nickname on someone.

  5. to direct (the eyes, thoughts, etc.) intently.

    to fasten one's eyes on a speaker.


verb (used without object)

  • fastens,
    present (3rd person singular)
  • fastened,
    past participle,  past
  • fastening
    present participle
  1. to become fast, fixed, or firm.

  2. to close firmly or securely; lock.

    This clasp won't fasten.

  3. to take a firm hold; seize (usually followed by on orupon ).

    to fasten on an idea.

  4. to focus attention; concentrate (usually followed by on orupon ).

    His gaze fastened on the jewels.

fasten British  
/ ˈfɑːsən /

verb

  1. to make or become fast or secure

  2. to make or become attached or joined

  3. to close or become closed by fixing firmly in place, locking, etc

  4. (tr; foll by in or up) to enclose or imprison

  5. to cause (blame, a nickname, etc) to be attached (to); place (on) or impute (to)

  6. to direct or be directed in a concentrated way; fix

    he fastened his gaze on the girl

  7. take firm hold (of)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future


Etymology

Origin of fasten

before 900; Middle English fastenen, Old English fæstnian; cognate with Old Norse fastna to betroth; akin to fast 1


Explanation

When you fasten something, you close or attach it. You might fasten your coat, closing each snap, when the sun goes down and the air gets chilly. People fasten all kinds of things: we all fasten our seat belts when we board an airplane and fasten our bathrobes by tying them in the front. Your ski goggles might fasten onto your helmet, just as your boots fasten onto your skis. You can also say that you fasten your hair with a barrette or fasten a charm bracelet around your wrist. The Old English root is fæstnian, "make fast or firm."

Keep Reading on Vocabulary.com

Vocabulary lists containing fasten

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.

See Examples For:

“Don’t blame anyone else, you just fasten it on me,” he said.

From Los Angeles Times ● Aug. 6, 2026

The implied exhortation is that readers should fasten their seatbelts for a rare old ride.

From The Wall Street Journal ● Jun. 26, 2026

At designer Rowen Rose, a large orange stone was used to fasten a green or yellow scarf to a matching sweater.

From Barron's ● Jan. 20, 2026

They fasten scarves on their visitors’ heads with a neat, pearl-topped pin.

From BBC ● Oct. 3, 2024

“But how to fasten them I know not. Could you tell me?”

From "The Door in the Wall" by Marguerite de Angeli

David Raya fastens his gloves and breathes out.

From BBC ● May 29, 2026

Later he fastens his attentions on an unthreatening neighbor and his daughter, who has a crush on Frank.

From The Wall Street Journal ● Apr. 14, 2026

As a song—“Just a Little Bit of Light”—plays, he lifts a large menorah from his car, fastens it onto the roof, lights it, and dances beside it, out in the street.

From Slate ● Dec. 19, 2025

She fastens chunky gold hoop earrings and clips on her gold Olympic necklace.

From Los Angeles Times ● Feb. 15, 2024

All I can hear is the scrape of Hannah’s broom and the taps of Lena’s rubber hammer as she fastens the lids in place.

From "Merci Suárez Changes Gears" by Meg Medina

The price of plastic has risen roughly 50 percent since before the Iran war, Chen told AFP as workers behind him fastened suction tubes to metal tanks.

From Barron's ● May 6, 2026

Upon walking up to the vehicle, the officer saw the “passenger” was a jacket wrapped around the front seat with a seat belt fastened to resemble a person.

From Los Angeles Times ● Mar. 17, 2026

A plywood arch bearing the words “Caius Caesar: Preparing For Triumph” had been fastened to the door; the kids were getting ready for the annual Roman pageant.

From The Wall Street Journal ● Jan. 9, 2026

But the bay vacated by the ice shelf was eventually filled with sea-ice "fastened" to the seabed, helping to partly stabilise Hektoria.

From BBC ● Nov. 3, 2025

Despite myself I could not keep my eyes off his hands; the harder I tried to keep my gaze fixed elsewhere, the more it fastened itself to those stumps.

From "Nectar in a Sieve" by Kamala Markandaya

Visitors also encountered the phonograph and early mechanical fastening devices that foreshadowed later developments in clothing closures.

From The Wall Street Journal ● May 16, 2026

The mission was dizzying, literally, as he spent months fastening his seatbelt and zipping through mountains, strapping on AR goggles and floating into fairy tales.

From Los Angeles Times ● Jun. 27, 2024

When Johnson entered the convention center, he hugged about 10 people before sitting on a couch, setting down his small coffee and fastening a headset and microphone.

From New York Times ● Feb. 8, 2024

Sound Transit has mentioned possibly leaving two lanes of Westlake open, by making narrow cuts and fastening temporary platforms to drive on.

From Seattle Times ● Nov. 21, 2023

Jorah Mormont accepted his collar in a sullen silence, but Penny began to cry as the armorer was fastening her own into place.

From "A Dance with Dragons" by George R. R. Martin

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