What does simultaneous mean?

Definitions for simultaneous
ˌsaɪ məlˈteɪ ni əs, ˌsɪm əl-si·mul·ta·ne·ous

This dictionary definitions page includes all the possible meanings, example usage and translations of the word simultaneous.

Princeton's WordNet

  1. coincident, coincidental, coinciding, concurrent, co-occurrent, cooccurring, simultaneousadjective

    occurring or operating at the same time

    "a series of coincident events"


  1. simultaneousadjective

    Occurring or transpiring at the same time.

  2. Etymology: From simultaneus, from simultim, from simul; compare similar.

Samuel Johnson's Dictionary

  1. Simultaneousadjective

    Acting together; existing at the same time.

    Etymology: simultaneus, Latin.

    If the parts may all change places at the same time, without any respect of priority or posteriority to each other’s motion, why may not bullets, closely crouded in a box, move by a like mutual and simultaneous exchange? Joseph Glanvill.

Webster Dictionary

  1. Simultaneousadjective

    existing, happening, or done, at the same time; as, simultaneous events

  2. Etymology: [LL. simultim at the same time, fr. L. simul. See Simulate.]

Chambers 20th Century Dictionary

  1. Simultaneous

    sim-ul-t#x101;′nē-us, adj. acting, existing, or happening at the same time: (math.) satisfied by the same values of the variables or unknown quantities—of a set of equations.—ns. Simultanē′ity, Simultā′neousness.—adv. Simultā′neously. [Low L. simultaneus—L. simul, at the same time.]

How to pronounce simultaneous?

How to say simultaneous in sign language?


  1. Chaldean Numerology

    The numerical value of simultaneous in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of simultaneous in Pythagorean Numerology is: 7

Examples of simultaneous in a Sentence

  1. Kamel Beldjoud:

    Only criminal hands can be behind the simultaneous outbreak of about 50 fires across several localities.

  2. Luis Jalandoni:

    It is possible we will have a separate but coordinated and simultaneous ceasefire with the government, we will still discuss the mode and timeframe of the truce, but we can easily agree to a simultaneous ceasefire.

  3. Henri Cartier-Bresson:

    To me, photography is the simultaneous recognition, in a fraction of a second, of the significance of an event.

  4. Eric Omare:

    There were two simultaneous attacks on (state oil firm) PPMC and NNPC pipelines.

  5. Peter Salama:

    It is critical to remember that the Ebola Fast FactsThe current outbreak outbreak in northwest Congo River is not the only challenge this country is facing, there is massive population displacement, food insecurity and malnutrition, particularly in the east of the country, and multiple simultaneous outbreaks of cholera, of measles and recently of vaccine-derived poliovirus.

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Translations for simultaneous

From our Multilingual Translation Dictionary

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"simultaneous." Definitions.net. STANDS4 LLC, 2023. Web. 8 Jun 2023. <https://www.definitions.net/definition/simultaneous>.

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