| UP | in or toward the northern parts of a state, as in"upstate New York" |
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| UP | in the direction against a stream's current |
| UP | against the current |
| UP | toward the source or against the current |
| UP | a stroke normally made in an upward direction |
| UP | a sudden or abrupt strong increase |
| UP | a sudden forceful flow |
| UP | the process of taking food into the body through the mouth (as by eating) |
| UP | a process of taking up or using up or consuming |
| UP | (geology) a rise of land to a higher elevation (as in the process of mountain building) |
| UP | (geology) a rise of land to a higher elevation (as in the process of mountain building) |
| UP | a transaction in the stock market at a price above the price of the preceding transaction |