What change will do in meaning of a verb when we add the word of UP to the end of them?? such verbs as :?

Question:wake + up =wakeup ...
wake up
sit up
get up
wash up
look up
dress up
mark up
wind up
end up
start up
finish up
walk up
climb up
push up
fill up
take up
give up
make up
brought up
and so on, and on

Answers:
There are some instances that adding the word "up" gives it a whole different meaning or makes it more better sounding or grammatically correct. i.e. you encourage a person by saying :
" Don't give up". The word "up" is part of the meaning it conveys, because you cannot convey to the person your message if you simply say: "Don't give." It has now a different meaning.

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