

Please fasten your seatbelt.
To attach or secure something firmly in place.
Please fasten the lid tightly.
Make sure to fasten your backpack before you leave.
He forgot to fasten his tie.
fasten a belt
fasten a button
fasten a strap
secure
attach
bind
She will fasten the lid on the jar.
To make something more secure or tight.
Please fasten your seatbelt before takeoff.
He will fasten the straps on his backpack.
Make sure to fasten the curtains tightly.
fasten a belt
fasten a button
fasten a seatbelt
secure
attach
bind
The fasten on the bag broke.
A device used to secure or attach things together.
The fasten on my jacket is broken.
She used a fasten to hold the papers together.
Make sure the fasten is secure before you lift it.
zip fasten
button fasten
clip fasten
clasp
fastener
hook