flag
verb
uk/flæɡ/ us-gg- [ T ]
to put a mark on something or against something so it can be found easily among other similar things:
Flag any files which might be useful later.
[ T ] IT
to mark computer information with one of two possible values so that you can process it later:
We'll flag the records of interest in the database and then we can give you a printout.
[ I ]
to become tired, weaker, or less effective:
We had been working on the presentation for six hours and I was beginning to flag.
They denied that demand for the new product was flagging.
Phrasal verb
flag sth up
flag
noun [ C ]
uk/flæɡ/ usa piece of cloth, usually rectangular and fixed to a pole at one edge, that has a pattern that shows it represents a country or a group, or has a particular meaning:
a container ship sailing under the Indonesian flag
a mark that you put on or against something to show that it is important:
You can put a flag on any email message that you know you will need to go back to and read again.
fly the flag
to show support for the country, group, or organization that you belong to:
The government was accused of failing to fly the flag for British farmers at the negotiations.