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Definition of ios

ios

/ˌaɪ.oʊˈɛs/
i · o · s
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ios Lexical Profile

ios Game Scores & Validity

• noun

1

A mobile operating system developed by Apple Inc. exclusively for its portable hardware, including the iPhone and iPod Touch.

Example

"The software developer released a new version of the application optimized for iOS."

2

A hilly Greek island in the Cyclades group in the Aegean Sea, situated halfway between Naxos and Santorini.

3

Plural form of io (a joyous exclamation, a giant silk moth of the genus Automeris, or one of Jupiter's Galilean moons).

Example

"The entomologist documented several brightly patterned ios resting on the oak leaves."

• Rhymes for ios

• Nearby Words

ionic
ionizer
iora
ios
iota
ipecac
ipheion

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Ios. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/ios
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