| upon |
on. [4 definitions] |
| up one's sleeve |
held secretly or in reserve. |
| upper |
higher in place, rank, position, or level. [6 definitions] |
| upper-case |
of printed letters, capital. [2 definitions] |
| uppermost |
highest in place, rank, influence, or importance. [2 definitions] |
| upright |
in a vertical position. [8 definitions] |
| uprising |
the act or an instance of rebelling or rising up against authority; insurrection. |
| uproar |
a loud, confused disturbance; commotion; tumult. [2 definitions] |
| uproot |
to pull up or tear out of the ground by the roots. [2 definitions] |
| upset |
to tip over; overturn. [13 definitions] |
| upside down |
with the part that is normally underneath on top; inverted. [2 definitions] |
| upstairs |
on or toward an upper floor; up the stairs. [4 definitions] |
| up to |
as far upward as. [7 definitions] |
| up-to-date |
having the most recent information; current. [2 definitions] |
| upward |
toward or to a higher position or place. [5 definitions] |
| Ural Mountains |
a mountain range in Russia, extending from the Arctic Ocean to near the Caspian Sea and forming a border between Europe and Asia; Urals. |
| uranium |
a radioactive chemical element that has ninety-two protons in each nucleus and that occurs in pure form as a heavy silvery-white metal, used as a fissionable nuclear fuel. (symbol: U) |
| Uranus |
the third largest planet in the solar system and seventh from the sun, having twenty-seven satellites and a diameter of about 31,500 miles. [2 definitions] |
| urban |
of or pertaining to a city or town. [3 definitions] |
| Urdu |
the official literary language of Pakistan, written with Persian-Arabic characters, and widely used by Muslims in India. |
| urge |
to push or drive forward or onward. [7 definitions] |