ADJ

loud, sharp
gentle, light
determined
timid

VERB + KNOCK

hear
answer
She hurried to answer the knock at the door

PHRASES

a knock at/on the door
There was a loud knock at the door

ADJ

hard, nasty, severe (figurative)
the hard knocks of life
minor

VERB + KNOCK

get, have, take
You've had a nasty knock on the head. (figurative) Their pride took quite a knock when they lost 5?0
give sb/sth

PREP

~ on

ADV

accidentally
I accidentally knocked the vase off the table
about, aside, over
Her boyfriend had been knocking her about. Mind you don't knock that glass over

PREP

against
The stick knocked against the wall
off
He had knocked one of the pictures off the wall
on
I knocked my head on one of the beams

PHRASES

knock sb/sth flying
He was knocked flying as two policemen came crashing through the door
knock sb off their feet
The explosion knocked him off his feet
knock sb out/senseless/unconscious
The blow knocked him unconscious
knock sb to the ground

ADV

loudly
softly
politely, timidly

PREP

at
Someone knocked loudly at the door
on
She knocked timidly on the study door and entered

PHRASES

without knocking
Dobson walked straight into her office without knocking