adverb
- Without delay or hesitation; with no time intervening.
- usage: "he answered immediately"; "found an answer straightaway"; "an official accused of dishonesty should be suspended forthwith"; "Come here now"
- synonyms: immediately, instantly, straightaway, straight off, directly, now, right away, forthwith, like a shot
- Simultaneously.
- usage: "he took three cookies at a time"
- synonyms: at a time, at one time
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). at once. Retrieved September 22, 2026, from http://smartdefine.org/at_once/definitions/1250721 |
| Chicago | WordNet. 2010. "at once" http://smartdefine.org/at_once/definitions/1250721 (accessed September 22, 2026). |
| Harvard | WordNet 2010, at once, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/at_once/definitions/1250721>. |
| MLA | WordNet. "at once" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/at_once/definitions/1250721> |