fasten

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

VERB

make secure; join together

Synonyms

STRONGEST

adhere affix attach bolt glue nail screw solder tighten truss weld

STRONG

anchor band bar batten belt bind bond brace button catch cement chain cleave close cohere connect couple embed establish fix girth grip hitch hold hook implant infix jam knot lace leash link lock lodge moor mortise rivet rope seal set settle stick strengthen string tag tie unite wedge

WEAK

freeze to hitch on hook up make firm stay put tack on

Antonyms

STRONGEST

detach disconnect disjoin let go loose loosen release separate unfasten

STRONG

allow confuse destroy discourage displace dissuade divide forget free halt leave lose open permit refuse remove unfix unhitch unlace unlock unseal unsettle unstick untie

WEAK

unchain unlink

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.

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

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

During the turbulence, it said a pilot was heard calling out saying the fasten seat belt sign had been switched on.

From Seattle Times • May 29, 2024

She urged drivers to “understand your emotional state” before getting behind the wheel and to remember to fasten their seat belts.

From Los Angeles Times • Mar. 21, 2024

“Suppose somebody forgets to fasten that seat belt of yours,” she said in that voice that sounded like she was chewing gravel.

From "Out of My Mind" by Sharon M. Draper

Vocabulary lists containing fasten

"A Universe of Stars"

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

"Core Curriculum: Introductory Craft Skills," Vocabulary from Module Four

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

And Then, Boom!

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!