| uphill |
When you walk uphill, you walk toward the top. [3 definitions] |
| uphold |
When something upholds something else, it keeps it from falling down or disappearing. It supports it. |
| upholstery |
Upholstery is strong material used to cover furniture like couches and big chairs. |
| up in the air |
not decided, not settled, or not certain. |
| upland |
the raised or higher parts of land in a region. [2 definitions] |
| upload |
to send information from a smaller computer to a larger computer or computer network. [2 definitions] |
| upon |
"Upon" is another word for "on." If someone puts their hand upon your shoulder, they put their hand on your shoulder. [2 definitions] |
| up one's sleeve |
held secretly or in reserve. |
| upper |
An upper thing is a thing at a higher level than something else. If there is snow on the upper part of the mountain, then there is snow on the higher part of the mountain. If someone sleeps on an upper bunk, they sleep on the bunk that is nearer the ceiling than the other bunk. [2 definitions] |
| upper-case |
capital rather than lower-case. |
| uppermost |
highest in place, rank, importance, or influence. [2 definitions] |
| upright |
When something is upright, it's in a standing position. When a person or animal is upright, they are standing, not sitting or lying down. [4 definitions] |
| uprising |
the act or an instance of rebelling or rising up against authority. |
| uproar |
a loud, confused disturbance; commotion. [2 definitions] |
| uproot |
to pull up or tear out of the ground by the roots. [2 definitions] |
| upset |
When something upsets you, it makes you angry or sad or afraid. You are not calm anymore. [6 definitions] |
| upside down |
When something is upside down, it means that the part that is usually on the top is on the bottom. |
| upstairs |
When you go upstairs, you go to a higher floor in a building. When your room is upstairs, it means that your room is on a higher floor. [3 definitions] |
| up to |
as far upward as. [7 definitions] |
| up-to-date |
Something that is up-to-date has the most recent information. If something is not up-to-date, it has old information in it. If a person is up-to-date, they know the newest information about something. [2 definitions] |
| upward |
When something moves upward, it moves toward a higher position or place. [2 definitions] |