English Reference

Word

ios

Phoneticsios

/ˈaɪoʊs/

Definitions

01Apple mobile operating system

B2 · Computing

n. Stands for iPhone Operating System. This is the software that makes your iPhone or iPad work.

n. Abbreviation for iPhone Operating System. The proprietary mobile operating system developed by Apple Inc. for its handheld devices.

“I need to update my phone to the latest version of iOS to use this app.”

“The developer noted that the application's performance improved significantly after the latest iOS kernel update was deployed.”

Technical

Usage

Usually written in lowercase 'i' followed by uppercase 'OS'.

Teaching tip

While originally used for both iPhone and iPad, Apple now uses 'iPadOS' for tablets, though many people still use 'iOS' as a general term for both.

Synonyms

mobile OS

02Greek island

C1

n. A small Greek island in the Aegean Sea, known for its beautiful beaches and nightlife.

n. A specific island within the Cyclades group in the Aegean Sea, Greece.

“We took a ferry from Santorini to spend a few days on the island of Ios.”

“Archaeological excavations on Ios have revealed significant settlements dating back to the early Cycladic period.”

Formal

Usage

Always capitalized as a proper noun.

Domain

Computing

This entry

Level
B2 · Upper Intermediate
Frequency
Common
Updated

Scan code

englishreference.com/q/ios

English Reference