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macos

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Letters

5 characters

Language

English

word origin

Source

Wiktionary

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Detailed reference entry for the English word "macos", 5-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "macos" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "macos" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

macOS is aEnglishname. It means: A major operating system, formerly known as OS X (and before that as Mac OS X), used on laptop and desktop computers by Apple Inc. Pronounced /ˌmækoʊˈɛs/. Often confused with mao and MoS.

Key facts for macOS
PropertyValue
HeadwordmacOS
LanguageEnglish
Part of speechName
IPA/ˌmækoʊˈɛs/
Letters5
Frequency rank#28,283
Misspellings tracked7
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency rank visualization

Position of macOS in English word frequency (lower rank = more common)

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for macOS is 5 letters long, classified as aname, and transcribed in the International Phonetic Alphabet as /ˌmækoʊˈɛs/. Corpus data places it at rank #28,283 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.The dominant gloss from Wiktionary reads: "A major operating system, formerly known as OS X (and before that as Mac OS X), used on laptop and desktop computers by Apple Inc.".

Our Hunspell-derived misspelling index lists 7 documented wrong-spelling variants for macOS, with forms such as "amcos", "maccos", and "macoss". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 20 confusable-pair relationships, "mao", "MoS", "MCS", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Mac (“Macintosh”) + OS (“operating system”). Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is macOS, spelled M-A-C-O-S, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    A major operating system, formerly known as OS X (and before that as Mac OS X), used on laptop and desktop computers by Apple Inc.

Etymology

From Mac (“Macintosh”) + OS (“operating system”).

This word in other languages

Common misspellings

Also misspelled as: amcos,maccos,macoss,macso,maocs,mcaos,mmacos

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for macOS

Misspelling Variants of "macOS"

amcos5maccos6macoss6macso5maocs5mcaos5mmacos6
Misspelling Variants of "macOS"

Frequency rank: #28,283 in English

Frequently Asked Questions

How do you spell "macOS"?
"macOS" is spelled M-A-C-O-S. The IPA pronunciation is /ˌmækoʊˈɛs/.
What does "macOS" mean?
As a name, "macOS" means: A major operating system, formerly known as OS X (and before that as Mac OS X), used on laptop and desktop computers by Apple Inc.
What words are commonly confused with "macOS"?
"macOS" is commonly confused with "mao", "MoS", "MCS". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "macOS"?
The IPA (International Phonetic Alphabet) transcription for "macOS" is /ˌmækoʊˈɛs/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "macOS"?
From Mac (“Macintosh”) + OS (“operating system”). See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Nearby English words

Other entries that begin with the letter M in our English index:

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Data Source: Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Frequency data from Wordfreq. Misspellings derived from Hunspell dictionaries.