At once
At once adverb - Without delay or hesitation; with no time intervening.
Shortly and at once are semantically related. in directly topic. In some cases you can use "Shortly" instead an adverb phrase "At once", when it comes to topics like as soon as possible.
Mutual synonyms
Related pairs
- immediately and at once
- immediately and shortly
- directly and at once
- directly and shortly
- straight away and at once
- straight away and shortly
- quickly and at once
- quickly and shortly
- presently and at once
- presently and shortly
- promptly and at once
- promptly and shortly
- soon and at once
- soon and shortly
Both terms in one sentence
- Shortly after, he's attacked by all the Element Bearers (and Spike) at once, and swats them all away with one hoof.
-
Sometimes done to one's own partner, shortly before throwing their mass onto several opponents at once.
Source: Hoist Hero Over Head - Shortly after release it was showing in eight New York theaters at once; Arthur Sullivan reported that New York high society instituted a half-dollar penalty for gratuitously quoting the show.
Source: Theatre / H.M.S. Pinafore
Cite this Source
Shortly and At once. (2016). Retrieved 2026, July 27, from https://thesaurus.plus/related/at_once/shortly
At once & Shortly. N.p., 2016. Web. 27 Jul. 2026. <https://thesaurus.plus/related/at_once/shortly>.
Shortly or At once. 2016. Accessed July 27, 2026. https://thesaurus.plus/related/at_once/shortly.
Google Ngram Viewer shows how "at once" and "shortly" have occurred on timeline