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

---

simultaneous British  

/ ˌsaɪməltəˈniːɪtɪ, ˌsɪməltəˈniːɪtɪ, ˌsaɪməlˈteɪnɪəs, ˌsɪməlˈteɪnɪəs /

adjective

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

---

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

Boritt would later describe “the death of my mother and the death of a dream that my father had of a better country, a better society” as simultaneous shocks.

From The Wall Street Journal

Multiple Device Support: Ensure the VPN allows simultaneous connections on all your devices—phone, laptop, tablet, etc.

From Salon

The Americans will, among other things, help their Nigerian counterparts coordinate simultaneous air and infantry operations, an often-risky military tactic.

From The Wall Street Journal

Familial and historical horrors are compressed in this strange, simultaneous haunting.

From The Wall Street Journal

And smiles were even brighter on fans of the Dow Theory, which predicts good things when there is a simultaneous record for both the Dow industrials and the Dow Jones Transportation Average, which happened Friday.

From The Wall Street Journal

Related Words

• concurrent