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.

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

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

From BBC • Oct. 3, 2024

The Marine in the mirror unfastened his collar and would not fasten it again until it was absolutely necessary.

From "The Great Santini" by Pat Conroy

Vocabulary lists containing fasten

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