all at once

An idiomatic expression meaning suddenly and unexpectedly, or simultaneously at the same time.

ruИдиоматическое выражение, означающее внезапно и неожиданно, или одновременно в одно и то же время.esExpresión idiomática que significa de repente e inesperadamente, o también al mismo tiempo o simultáneamente.frExpression idiomatique signifiant soudainement et de manière inattendue, ou bien en même temps, simultanément.deIdiomatischer Ausdruck, der bedeutet, dass etwas plötzlich und unerwartet geschieht oder dass mehrere Dinge gleichzeitig zur selben Zeit passieren.ptExpressão idiomática que significa de repente e inesperadamente, ou ao mesmo tempo, simultaneamente.zh习语，表示突然而意外地发生，或表示在同一时间一起发生、同时进行。arتعبير اصطلاحي يعني فجأة ومن غير توقع، أو في الوقت نفسه دفعة واحدة.

1. Suddenly B1 formal

   Happening without warning; unexpectedly.

   • All at once, the lights went out.
   • She felt dizzy all at once and had to sit down.
   • All at once, the crowd began to cheer.

   ruВнезапноesde repentefrtout à coupdePlötzlichptDe repentezh突然arفجأةً

2. Simultaneously B1 formal

   Happening at the same time; all together.

   • The children started talking all at once.
   • Don't try to do everything all at once; take your time.
   • The alarms went off all at once, causing confusion.

   ruОдновременноesDe una vezfrTous en même tempsdeGleichzeitigptDe uma só vezzh同时arفي الوقت نفسه