Pass up and Passing on

Pass up verb - To show unwillingness to accept, do, engage in, or agree to.

Passing on and pass up are semantically related In some cases you can use "Passing on" instead a verb "Pass up".

Pass up and passing on are semantically related in give up topic. Sometimes you can use "Pass up" instead a verb "Passing on", if it concerns topics such as say no to, decide not to do.