at once

== English == === Alternative forms === attonce (obsolete) === Etymology === From Middle English at ones, equivalent to at + once. === Pronunciation === (UK) IPA(key): /ət ˈwʌns/ === Adverb === at once (not comparable) (obsolete) In one group; together. At the same time; simultaneously; together. Immediately; now; right away. ==== Derived terms ==== ==== Translations ==== === References === === Anagrams === Acteon, encoat, octane