Knock off and Strike a note

Knock off verb - To bring (as an action or operation) to an immediate end.

Strike a note and knock off are semantically related. In some cases you can use "Strike a note" instead a verb "Knock off".

Strike a note verb - Refer to or be relevant or familiar to.

Knock off and strike a note are semantically related. Sometimes you can use "Knock off" instead a verb phrase "Strike a note".