| Word | Definitions | Synonyms |
|---|---|---|
| alert | (adjective) engaged in or accustomed to close observation | Synonyms: watchful |
| (adjective) mentally perceptive and responsive | Synonyms: alive, awake | |
| (adjective) quick and energetic | Synonyms: brisk, lively, merry, rattling, snappy, spanking, zippy |