# simultaneity

> English word · Noun · IPA /ˌsɪməltəˈniːɪti/

## Definitions
1. The quality or state of being simultaneous; simultaneousness.
2. More than one complete musical texture occurring at the same time. This first appeared in the music of Charles Ives, and is common in the music of Conlon Nancarrow, and others.

## Etymology
From simultane(ous) + -ity. By surface analysis, simult(aneous) + -aneity. Compare French simultanéité.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/simultaneity