Word
simultaneous
Phoneticssi·mul·ta·ne·ous, stress on the third syllable
US/ˌsaɪməɫˈteɪniəs/
UK/sˌɪməltˈeɪniəs/
Definitions
01happening at the same time
B2 · Upper Intermediate
adj. happening, existing, or done at exactly the same time as something else.
adj. occurring, operating, or existing at the same time. Non-gradable; an event is either simultaneous with another or it is not.
“The movie was released with simultaneous screenings in London and New York.”
“The software update allows for simultaneous editing by multiple users, ensuring that all changes are synchronized in real time across the network.”
Usage
Usually placed before the noun or following a linking verb with the preposition 'with'.
Synonyms
Antonyms
02math equations
B2 · Upper Intermediate Mathematics Technical
adj. describes a set of equations that you solve together to find the same answer for the variables.
adj. relating to a set of equations that are satisfied by the same values of the variables and are solved together.
“We had to solve three simultaneous equations for our algebra homework.”
“The student struggled to apply the substitution method when solving the pair of simultaneous equations during the final examination.”
Usage
Almost exclusively used in the phrase 'simultaneous equations'.
Collocations
Common phrases and expressions where native English speakers use the word “simultaneous” in context.
Adjective
01. simultaneous analysis
“The software allows for the simultaneous analysis of data from multiple sensors.”
adj + noun
Real-World Examples
“Rules have since been modified to prevent simultaneous ownership of two teams in the top three divisions, but that did not deter Lotito from completing the takeover of another fourth-tier club, Reggina, this summer.” “Within four months the world would be convulsed by two simultaneous military and political crises.” “Using stolen credentials, the adversary once again opened numerous simultaneous connections to Hugging Face’s servers.” Etymology
From Medieval Latin simultaneus, from simultim (“at the same time, extended”), from Latin simul (“together, at the same time”); compare similar.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
ADJECTIVE
ADVERB
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Frequent
- Level
- B2 · Upper Intermediate
- Updated
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QR code
englishreference.com/q/simultaneous