| Word | Definitions | Synonyms |
|---|---|---|
| uptick | (noun) a transaction in the stock market at a price above the price of the preceding transaction | - |
| uptight | (adjective) being in a tense state | Synonyms: edgy, high-strung, highly strung, jittery, jumpy, nervy, overstrung, restive |
| uptime | (noun) a period of time when something (as a machine or factory) is functioning and available for use | - |