Definitions
There is 1 meaning of the phrase
Knock On.
Knock On - as a noun
(rugby) knocking the ball forward while trying to catch it (a foul)
Example Sentences
"I saw him knock on the window to get their attention."
"You need to knock on the wall and listen for any hollow sound."
"Please knock on the door before entering my office."
"You should always knock on the bathroom door before entering, just in case."
"The little girl was afraid to knock on the neighbor's door to ask for her ball back."
