1.
( of plants ) to appear above the soil :
The daffodils are just beginning to come up.
2.
( of the sun ) to rise :
We watched the sun come up.
3.
to happen :
I'm afraid something urgent has come up.
We'll let you know if any vacancies come up.
4.
to be mentioned or discussed :
The subject came up in conversation.
The question is bound to come up at the meeting.
5.
( of an event or a time ) to be going to happen very soon :
Her birthday is coming up soon.
6.
to be dealt with by a court :
Her divorce case comes up next month.
7.
if your number, name, ticket, etc. comes up in a betting game, it is chosen and you win sth
8.
( informal ) (usually used in the progressive tenses) to arrive; to be ready soon :
'Is lunch ready?' 'Coming up!'