fasten
Americanverb (used with object)
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fastens,
present (3rd person singular)
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fastened,
past participle, past
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fastening
present participle
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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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fastens,
present (3rd person singular)
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fastened,
past participle, past
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fastening
present participle
-
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
"A Universe of Stars"
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"Core Curriculum: Introductory Craft Skills," Vocabulary from Module Four
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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
In exchange for the beauty of living life in Topanga, some folks will learn to accept the risk and do what they can to mitigate it: Harden a home, fasten a seat belt.
From Los Angeles Times ● Nov. 24, 2025
After telling Ms Harris to fasten her seatbelt, Ms Buell said the soon-to-be Democratic nominee quipped, “I was born with a seatbelt.”
From BBC ● Aug. 17, 2024
As I fasten the iridescent black buttons, I catch notice of the number tattooed on my arm—A28865—from the day I lost my name in a distant world.
From "What the Night Sings" by Vesper Stamper
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
Arciga fastens the headset over his black beanie and enables “Do Not Disturb” on his iPhone, before fastening the phone to his head to record.
From Los Angeles Times ● Mar. 12, 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
The mantle, which fastens across the chest with a golden eagle clasp, is inspired by ancient coronation ensembles and its priest-like style is meant to symbolise the divine nature of kingship.
From BBC ● May 1, 2023
I have a large Plexiglas tray that fastens to the arms of my chair.
From "Out of My Mind" by Sharon M. Draper
Before Standard Oil became “the most gigantic, the most cruel, impudent, pitiless, and grasping monopoly which ever fastened upon a community,” it was a start-up.
From Barron's ● May 2, 2026
After the walk-around inspection, I fastened my chin strap and hoisted myself into the bare-carbon cockpit.
From The Wall Street Journal ● Oct. 17, 2025
But it might mean more time sitting down, with the seat-belt fastened.
From BBC ● Jul. 29, 2025
But I made it and fastened my seat belt.
From Slate ● Jun. 22, 2025
In only a few hours’ time, she and the children would line up outside the POE for inspection by the admiral, with their rucksacks strapped to their backs and pith helmets fastened beneath their chins.
From "The Unseen Guest" by Maryrose Wood
Saturday's action was thwarted by wind, waves and an issue with the cockpit canopy's latch not fastening.
From BBC ● May 17, 2026
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 we took off, there was no talk of fastening seat belts.
From "Slaughterhouse-Five" by Kurt Vonnegut
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.
