Catch up and Come close

Catch up verb - To catch or hold as if in a net.

Come close and catch up are semantically related in come nearer topic. In some cases you can use "Come close" instead a verb "Catch up".

Come close verb - Be close or similar.

Catch up and come close are semantically related in come nearer topic. Sometimes you can use "Catch up" instead a verb phrase "Come close".