fasten
Americanverb (used with object)
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to attach firmly or securely in place; fix securely to something else.
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to make secure, as an article of dress with buttons, clasps, etc., or a door with a lock, bolt, etc.
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to enclose securely, as a person or an animal (usually followed byin ).
to fasten a monkey in a cage.
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to attach, associate, or connect.
to fasten a nickname on someone.
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to direct (the eyes, thoughts, etc.) intently.
to fasten one's eyes on a speaker.
verb (used without object)
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to become fast, fixed, or firm.
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to close firmly or securely; lock.
This clasp won't fasten.
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to take a firm hold; seize (usually followed by on orupon ).
to fasten on an idea.
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to focus attention; concentrate (usually followed by on orupon ).
His gaze fastened on the jewels.
verb
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to make or become fast or secure
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to make or become attached or joined
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to close or become closed by fixing firmly in place, locking, etc
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(tr; foll by in or up) to enclose or imprison
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to cause (blame, a nickname, etc) to be attached (to); place (on) or impute (to)
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to direct or be directed in a concentrated way; fix
he fastened his gaze on the girl
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take firm hold (of)
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
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fastensimple
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fastenssimple
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have fastenedperfect
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has fastenedperfect
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am fasteningprogressive
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are fasteningprogressive
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is fasteningprogressive
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have been fasteningperfect progressive
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has been fasteningperfect progressive
Past
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fastenedsimple
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had fastenedperfect
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was fasteningprogressive
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were fasteningprogressive
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had been fasteningperfect progressive
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."
Vocabulary lists containing fasten
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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:
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
Reusable pads look similar to disposable ones but are usually made from cotton or bamboo and fasten around your underwear with poppers.
From BBC ● Sep. 23, 2025
Raise your tray tables and your reclining seats, and fasten your seat belts.
From Los Angeles Times ● May 20, 2025
“And how shall I fasten the pieces of the cross together?” asked Robin.
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
He unzips his jacket and I press against him as he fastens it around me.
From "The Hunger Games" by Suzanne Collins
“As a result, we would suggest you remain seated with your seat belts fastened, as we expect more near-term turbulence.”
From Barron's ● Jun. 10, 2026
Smith said it was accepted there had been a failure to ensure the grating was properly fastened to prevent detachment while under tow.
From BBC ● May 18, 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 I made it and fastened my seat belt.
From Slate ● Jun. 22, 2025
I looked at my eight-year-old sister: sure enough, her high-buttoned shoes were neatly fastened.
From "The Hiding Place" by Corrie ten Boom
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
Kondo brought garments to life, like kites in the sky with voluminous silhouettes created by fastening and unfastening buttons.
From Seattle Times ● Jun. 20, 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
Quentin was leaning against the table, fastening her kimono.
From "The Sound and the Fury" by William Faulkner
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.
