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to use up
[phrase form: use]
01
to entirely consume a resource, leaving none remaining
Transitive: to use up a resource
Example
She used the milk up in the recipe, so we need to buy more.
They used the fuel up during the long journey.
02
to require a certain amount of time or space
Transitive: to use up a period of time
Example
The long presentation used up the scheduled time for other speakers.
The lengthy discussion used up the entire class period.
