| unusual |
not usual or ordinary; not common; remarkable. |
| unwell |
in poor health; sick; ill. |
| unwind |
to undo from a wound or twisted state; remove the twists from. [4 definitions] |
| up |
to, toward, at, or in a higher place or position. [23 definitions] |
| up- |
a prefix that means "up" or "upward." |
| upbringing |
the training and rearing of a child or children. |
| update |
new and more recent information about a particular thing, or a change in something that is made with the aim of improving it. [3 definitions] |
| up for grabs |
(informal) able to be taken by anyone; not yet decided. |
| upgrade |
an upward slope or incline. [2 definitions] |
| upheaval |
an act, instance, or condition of being raised or heaved upward. [2 definitions] |
| uphill |
on an upward slope or in an upward direction. [3 definitions] |
| uphold |
to support or decide in favor of, when faced with a challenge. [2 definitions] |
| upholstery |
materials used to cover furniture. [2 definitions] |
| 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 |
on. [3 definitions] |
| up one's sleeve |
held secretly or in reserve. |
| upper |
higher in place, rank, position, or level. [2 definitions] |
| upper-case |
capital rather than lower-case. |
| uppermost |
highest in place, rank, importance, or influence. [2 definitions] |