I've noticed that he word "up" seems to be one of the most common "extra words" used in short English phrases. Some examples are:
- Look up
- Shut up
- Finish up
Another one is "over" as in:
- turn over
- look over
- come over
Is there a part of speech name for these types of "extra" words? I call them "extra" because they don't seem to change the meaning of the word that precedes it. "Turn over" seems to be redundant as when you turn something, you see the "over" or other side. Are these words nouns, prepositions, or what?