B1verbtransporttravel
US/ˈfæs.ən/
UK/ˈfɑː.sən/
to close or join two parts of something, or to fix something firmly in place
In context
Please fasten your seat belt before the plane takes off.
She fastened her helmet carefully and rode off to work.
Fasten the gate properly, or the dog will get out again.
Words that go with fasten
verb + noun
- fasten your seat beltAlways fasten your seat belt, even on short trips.
- fasten the strapFasten the strap under your chin so the helmet stays on.
verb + adverb
- fasten securelyMake sure the boxes are fastened securely to the back of the bike.
- fasten tightlyFasten the lid tightly so the soup doesn't spill.
- fasten togetherUse a clip to fasten the papers together.
Common mistakes
Incorrect:
Please tie your seat belt.Correct: Please fasten your seat belt.