Meaning of AT ONCE

WordNet Dictionary
	Definition:		[adv]  without delay; with no time intervening; "he answered immediately"; "found an answer straightaway"; "an official accused of dishonesty should be suspended forthwith"; "Come here now!" [adv]  simultaneously; "he took three cookies at a time"
	Synonyms:		at a time, at one time, directly, forthwith, immediately, in real time, instantly, now, right away, straight off, straightaway
Thesaurus Terms
	Related Terms:		all at once, all together, amain, apace, as one, at a blow, at a stroke, at one blow, at one jump, at one stroke, at one swoop, at one time, by forced marches, coincidentally, coinstantaneously, concurrently, conjointly, corporately, cursorily, decisively, directly, expeditiously, feverishly, forthwith, furiously, hand over fist, hastily, helter-skelter, hotfoot, hurriedly, hurry-scurry, immediately, in a hurry, in agreement, in common, in concord, in no time, in partnership, in passing, in unison, inharmony, instanter, instantly, jointly, mutually, now, on the instant, on the run, on the spot, PDQ, pell-mell, per saltum, pretty damned quick, promptly, pronto, quickly, right away, right now, right off, simultaneously, slapdash, smartly, speedily, straightaway, straightway, subito, summarily, superficially, swiftly, then and there, this minute, this very minute, together, uno saltu, with a rush, with all haste, with all speed, with dispatch, with haste, without delay, without further delay