bring up a topic etc. =
introduce it in a conversation- I don't want to hear any more about this matter. Please don't bring it up again.
come up =
be introduced in a conversation- Some interesting points came up in our discussion yesterday.
come up with an idea, a suggestion etc. =
produce an idea- Sarah is very creative. She's always coming up with new ideas.
make something
up =
invent something that is not true- What Kevin told you about himself wasn't true. He made it all up.
cheer up =
be happier,
cheer somebody
up =
make somebody feel happier- You look so sad! Cheer up!
- Helen is depressed at the moment. What can we do to cheer her up?
save up for something / to do something =
save money to buy something- Dan is saving up for a trip round the world.
clear up =
become bright (for weather)- It was raining when I got up, but it cleared up later.
break up / split up (with somebody) =
separate- I'm surprised to hear that Sue and Paul have split up. They seemed very happy together.
do up a coat, a shoelace, buttons etc. =
fasten, tie etc.- It's quite cold. Do up your coat before you go out.
do up a building, a room etc. =
repair and improve it- The kitchen looks great now that it has been done up.
look something
up in a dictionary, encyclopaedia etc.
- If you don't know the meaning of a word, you can look it up in a dictionary.
put up with something =
tolerate it- We live on a busy road, so we have to put up with a lot of noise from the traffic.
hold up a person, a plan etc. =
delay- Don't wait for me. I don't want to hold you up.
- Plans to build a new factory have been held up because of the company's financial problems.
mix up people/things,
get people/things
mixed up =
you think one is the other- The two brothers look very similar. Many people mix them up. (or ... get them mixed up)