Pronunciation: /ˈfæsən/
verb to close or attach securely; to make something secure or fixed in place
A1 Please fasten your seatbelt before takeoff.
A2 She fastened the buttons on her coat to keep warm.
B1 The carpenter fastened the pieces of wood together with nails.
B2 The sailor fastened the ropes securely to the dock.
C1 The engineer fastened the bolts tightly to ensure the stability of the structure.
C2 The astronaut fastened the helmet before entering the spacecraft for the mission.
formal Please remember to fasten your seatbelt before the plane takes off.
informal Hey, don't forget to fasten your shoelaces before you trip!
slang Make sure to fasten your snapback before you head out.
figurative She tried to fasten her emotions, but they kept spilling out.
fastened
fastens
faster
fastest
fasten
will fasten
has fastened
is fastening
fastens
fast
to fasten
fastening
fastening