【come up】 —

1. (of plants) appear above the soil:

• I sowed some beans three weeks ago, but they haven’t 【come up】 yet.

2. (of a question, etc.) arise; be mentioned:

• His name came up whenever the matter of nuclear energy was discussed.

3. (legal) be considered (in a court of law):

• The paper announced the cases that were to 【come up】 at the assizes the following day.

4. (of an opportunity, etc.) arise; occur:

• I’ll let you know as soon as a vacancy comes up.

5. rise in status, rank, etc.:

• That politician has 【come up】 in my opinion since I heard his last speech.

【go up】 —

1. (of the curtain) rise:

• The lights went down and the curtain went up.

2. be constructed:

• New universities went up at a fantastic rate in the 1960s.

3. = 【come up】 5:

• Jane has gone up in my estimation since she did that.

4. move to the next higher class at school:

• Did all the children 【go up】 at the end of the year?

5. (of prices, etc.) rise; increase:

• Everything seems to be going up these days: coal, groceries, rents.

6. be shattered by explosion:

• The munition factory went up when the bomb fell on it.