Catch on to and Clean up

Catch on to verb - To come to an awareness of.

Clean up and catch on to are semantically related. In some cases you can use "Clean up" instead a verb "Catch on to".

Clean up verb - To make a place neat and orderly by removing extraneous stuff.

Catch on to and clean up are semantically related. Sometimes you can use "Catch on to" instead a verb "Clean up".