simultaneous

adjective
si·​mul·​ta·​neous | \ ˌsī-məl-ˈtā-nē-əs How to pronounce simultaneous (audio) , -nyəs also ˌsi-\

Definition of simultaneous

1 : existing or occurring at the same time : exactly coincident
2 : satisfied by the same values of the variables simultaneous equations

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Other Words from simultaneous

simultaneity \ ˌsī-​məl-​tə-​ˈnē-​ə-​tē , -​ˈnā-​ also  ˌsi-​ \ noun
simultaneously \ ˌsī-​məl-​ˈtā-​nē-​əs-​lē How to pronounce simultaneously (audio) , -​nyəs-​ also  ˌsi-​ \ adverb
simultaneousness noun

Choose the Right Synonym for simultaneous

contemporary, contemporaneous, coeval, synchronous, simultaneous, coincident mean existing or occurring at the same time. contemporary is likely to apply to people and what relates to them. Abraham Lincoln was contemporary with Charles Darwin contemporaneous is more often applied to events than to people. contemporaneous accounts of the kidnapping coeval refers usually to periods, ages, eras, eons. two stars thought to be coeval synchronous implies exact correspondence in time and especially in periodic intervals. synchronous timepieces simultaneous implies correspondence in a moment of time. the two shots were simultaneous coincident is applied to events and may be used in order to avoid implication of causal relationship. the end of World War II was coincident with a great vintage year

Examples of simultaneous in a Sentence

The two gunshots were simultaneous. a simultaneous release of the movie and its soundtrack on CD

Recent Examples on the Web

The wraps come off Wednesday at simultaneous events in its three biggest markets, where Porsche -- which has churned out roaring sports cars for seven decades -- will bathe the new car in a backdrop of sustainable-power imagery. Christoph Rauwald, Fortune, "Watch Out Tesla: Porsche Unveils Its First-Ever Electric Car," 4 Sep. 2019 The new devices should be capable of handling up to 200 simultaneous users, meaning less congestion and faster downloads. Hiawatha Bray, BostonGlobe.com, "Back to school: Internet access is essential these days, and yes, there are affordable options," 3 Sep. 2019 After all, for now, Israel does not face simultaneous existential threats from both Iran and the Arab world. Victor Davis Hanson, National Review, "Israel’s Good and Bad New Realities," 3 Sep. 2019 Yet the petite 30-year-old — who already has a 1-year-old son ― suspected her belly seemed larger than typical this time, describing mysterious simultaneous movements on both sides of the womb. Angie Leventis Lourgos, chicagotribune.com, "Pregnant behind bars: A downstate prison opens a special wing for mothers-to-be and postpartum inmates," 2 Sep. 2019 In total, emergency crews saved eight hikers in four locations responding to simultaneous calls for help in the Zuma Canyon area, officials said. Angel Jennings, Los Angeles Times, "One hiker dead and 4 others suffer heat exhaustion in Malibu Hills," 2 Sep. 2019 Bowen and Lindsey thought the physical pain — the simultaneous snapping of two bones, the grueling cycles of surgery and rehab — would be the worst part. Nathan Baird, cleveland.com, "How and why Branden Bowen persevered to win another starting job for the Ohio State Buckeyes," 29 Aug. 2019 As part of the project, BART will shut down train service and position a 265-ton crane on the freeway, forcing the simultaneous closure of two of the four traffic lanes. Daniel Borenstein, The Mercury News, "Borenstein: Expect massive East Bay traffic backup this weekend," 16 Aug. 2019 In July 2018, Drake made Hot 100 history by charting seven simultaneous top 10s (concurrent with the Billboard 200 start of his LP Scorpion), passing The Beatles' record of five that had stood since 1964. Xander Zellner, Billboard, "Drake Becomes First Soloist to Pass 200 Appearances on Billboard Hot 100 Chart," 12 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'simultaneous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of simultaneous

circa 1660, in the meaning defined at sense 1

History and Etymology for simultaneous

Latin simul at the same time + English -taneous (as in instantaneous) — more at same

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More Definitions for simultaneous

simultaneous

adjective

English Language Learners Definition of simultaneous

: happening at the same time

simultaneous

adjective
si·​mul·​ta·​neous | \ ˌsī-məl-ˈtā-nē-əs How to pronounce simultaneous (audio) \

Kids Definition of simultaneous

: existing or taking place at the same time simultaneous events

Other Words from simultaneous

simultaneously adverb

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