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Definition
High up.
Upset, angry.
hub
Related Idioms
u u u u u u
up in the air
Not yet resolved, finished, answered, decided or certain.
up for
Willing to participate in; interested in.
up to here
Overwhelmed, busy, buried or swamped.
up to scratch
sufficient; adequate; of acceptable or satisfactory quality
up to speed
Fully informed; current.
up the river
To prison.