bang · verb /bæŋ/
bang
B2 I or T to make a sudden loud noise or to cause something to do this
Dictionary examples:
She banged her fist angrily on the table.
Outside a door was banging in the wind.
He could hear someone banging at the door.
Learner example:
One Friday afternoon I was putting away clothes and shoes in the little room which is under the stairs, when my little son, Tom (who was just eighteen months old) banged the door [shut] behind me. (First Certificate in English; B2; French)
bang · noun C /bæŋ/
bang
B2 a sudden loud noise
Dictionary example:
The window slammed shut with a loud bang.
Learner example:
I was reading when I suddenly h[e]ard a big bang. (First Certificate in English; B2; Swedish)