simultaneously

[/ˌsɪməlˈteɪniəsli/ or /ˌsɪml̩ˈteɪniəsli/]
adverb
simultaneamente
1. at the same time; occurring or done at the same moment
The two events happened simultaneously.
Os dois eventos aconteceram simultaneamente.
2. in a way that is concurrent or coinciding in time
She spoke to multiple people simultaneously on the conference call.
Ela falou com várias pessoas simultaneamente na chamada de conferência.
3. happening or existing at the same instant without delay
The lights turned on simultaneously across the entire stadium.
As luzes acenderam simultaneamente em todo o estádio.
Both American and Brazilian English/Portuguese use 'simultaneously' and 'simultaneamente' in formal, technical, and academic contexts. In informal speech, Americans might say 'at the same time' while Brazilians might use 'ao mesmo tempo' or 'no mesmo tempo.' The word is essential in technical, scientific, and business communication in both cultures.
Synonyms / Sinônimos
concurrentlyat the same timein paralleltogetherall at once
Antonyms / Antônimos
sequentiallyconsecutivelysuccessivelyseparatelyone after another

Regional Variations

General Brazilian Portuguese
simultaneamente
standard and widely used form
Rio de Janeiro
simultaneamente
standard usage, sometimes used colloquially as 'ao mesmo tempo'
São Paulo
simultaneamente
formal and standard usage in business and academic contexts
Portugal
simultaneamente
standard form, identical to Brazilian Portuguese

Related Words

simultaneoussimultaneityconcurrentsynchronousparallel

Related Idioms & Phrases

at one and the same time
in one breath
all at once
in tandem
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