simultaneous

American  

[sahy-muhl-tey-nee-uhs, sim-uhl-] / ˌsaɪ məlˈteɪ ni əs, ˌsɪm əl- /

adjective

1. existing, occurring, or operating at the same time; concurrent: simultaneous translation.

   simultaneous movements;

   simultaneous translation.

   Synonyms:

   coincident, synchronous

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simultaneous British  

/ ˌsaɪməltəˈniːɪtɪ, ˌsɪməltəˈniːɪtɪ, ˌsaɪməlˈteɪnɪəs, ˌsɪməlˈteɪnɪəs /

adjective

1. occurring, existing, or operating at the same time; concurrent

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noun

1. Sometimes shortened to: simul.  chess a display in which one player plays a number of opponents at once, walking from board to board

Other Word Forms

• nonsimultaneous adjective
• simultaneity noun
• simultaneously adverb
• simultaneousness noun
• unsimultaneous adjective
• unsimultaneousness noun

Etymology

Origin of simultaneous

First recorded in 1650–60; from Latin simul “together” ( similar ) + (instan)taneous

Example Sentences

"We captured 125 Daesh suspects in simultaneous operations carried out in 25 provinces this morning," Ali Yerlikaya said, using the Arabic acronym for IS.

From Barron's

Dean will cap off her incredible year - which also saw her achieve four simultaneous top 10 hits - by appearing on Jools Holland's Hootenanny.

From BBC

It does not include simultaneous outbreaks seeded by migratory birds or by poultry networks.

From BBC

The group has been discussing ways to more proactively detect when parents are pursuing multiple simultaneous surrogacies across different agencies without violating patient privacy laws, she said.

From The Wall Street Journal

The stock began trading on the Nasdaq and the London Stock Exchange through a simultaneous dual listing in October.

From Barron's

Related Words

• concurrent