knock
US /nɑːk/
UK /nɑːk/

1.
2.
colpo, urto
a blow or hit, especially one that causes damage or injury
:
•
The car sustained a heavy knock to the front bumper.
L'auto ha subito un forte colpo al paraurti anteriore.
•
He took a nasty knock to the head during the game.
Ha preso un brutto colpo alla testa durante la partita.
1.
bussare, colpire
to hit something (such as a door) with the knuckles of your hand or with a hard object in order to get attention
:
•
Please knock before entering.
Per favore, bussa prima di entrare.
•
He knocked on the window to get her attention.
Ha bussato alla finestra per attirare la sua attenzione.
2.