Real Dictionary

U.P. in American English
abbreviation: Upper Peninsula

up in American English
adverb: to, toward, or in a more elevated position

up in American English 1
from a lower to a higher place; away from or out of the ground

up in American English 2
apiece; each

up in British English
abbreviation for: United Press
adverb: to an upward, higher, or erect position, esp indicating readiness for an activity
preposition: indicating movement from a lower to a higher position

up preposition, adverb, and adjective uses
preposition: If a person or thing goes up something such as a slope, ladder, or chimney, they move away from the ground or to a higher position.

up used in combination as a preposition
phrase: If you feel up to doing something, you are well enough to do it.

up verb uses
verb: If you up something such as the amount of money you are offering for something, you increase it.

up- in American English
up
combining form

up- in British English
prefix: up, upper, or upwards

up. in American English
abbreviation: underproof (alcohol)