Answer: a loud, unpleasant, and prolonged noise.
"The fans made an awful din"
Similar:
uproar
racket
loud noise
confused noise
commotion
cacophony
babel
hubbub
tumult
fracas
clangor
crash
clatter
clash
shouting
yelling
screaming
caterwauling
babble
babbling
clamor
outcry
brouhaha
fuss
disturbance
ado
pandemonium
bedlam
chaos
confusion
stramash
hullabaloo
rumpus
ruction
row
vociferation
ululation
shivaree
Opposite:
silence
quiet
verb
1.
make (someone) learn or remember something by constant repetition.
"the doctrine that has been dinned into all our heads"
Similar:
instill
drive
drum
hammer
drill
implant
ingrain
inculcate
teach over and over again
indoctrinate
brainwash
2.
make a loud, unpleasant, and prolonged noise.
"the sound dining in my ears was the telephone ringing"