also: いちじに · いっときに
all at once; at the same time; simultaneously
Describes multiple things happening or being done at the same moment, often with a sense of suddenness or concentration. Commonly used with verbs like 来る, 起こる, 言う, 押し寄せる.
Orders came in all at once, and the shop was in chaos.
みんなが一時に話し始めたので、何も聞き取れなかった。
Everyone started talking at the same time, so I couldn't catch anything.
Standard kanji spelling; the reading いちどきに is the most common.
Rare reading; いちどきに is overwhelmingly preferred.
Rare reading; いちどきに is overwhelmingly preferred.
Compound of 一時 (one time/moment) + particle に, with the reading いちどきに being a sound shift from いちじに.