# simultaneously

/ˌsaɪməɫˈteɪniəsɫi/ (US) · /sˌɪməltˈeɪniəsli/ (UK) · CEFR C1 · Adverb

Source: https://englishreference.com/word/simultaneously
Updated: 2026-05-02

## Definition

at the exact same time as something else. You use this to describe two or more things happening together.

For teachers: happening, existing, or done at the exact same time. Often used to describe concurrent processes or events in technical or formal contexts.

## Examples

- The two runners crossed the finish line simultaneously.
- The software allows multiple users to edit the same document simultaneously from different locations around the world.
- The conductor managed to cue the brass section while simultaneously maintaining a delicate tempo with the strings, demonstrating remarkable coordination and focus.

## Pitfalls

- Not "They arrived simultaneously to the party." but "They arrived at the party simultaneously." — As a long adverb of time, it usually follows the entire verb phrase rather than interrupting it.

## Usage notes

- Typically placed after the verb or at the end of the clause; can also appear between the auxiliary and main verb.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.