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Definitions

simultaneity

[sahy-muhl-tuh-nee-i-tee, sim-uhl-, -ney-] / ˌsaɪ məl təˈni ɪ ti, ˌsɪm əl-, -ˈneɪ- /
NOUN
concurrence
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For several years, he has been a persistent and often lonely voice calling for America to get serious about the simultaneity problem.

From The Wall Street Journal • Mar. 6, 2026

The simultaneity of the play’s two levels gets lost in the comic mayhem of Act Two.

From Los Angeles Times • Feb. 10, 2025

Ambivalence isn’t neutrality; it’s the simultaneity of strong, opposed emotions, and I think it defines my experience as a critic.

From New York Times • Mar. 17, 2023

“This album is an exploration of the simultaneity of human emotions,” she wrote of last year’s “Fatigue,” “the audacity of joy in the wake of grief, disappointment in the face of accomplishment.”

From Washington Post • Sep. 28, 2022

Perhaps tomorrow someone will invent a theory consistent with everything else we know that circumvents paradoxes on such matters as simultaneity, avoids privileged reference frames and still permits travel faster than light.

From "Cosmos" by Carl Sagan