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mos

noun

mos is spelled M-O-S: 3 letters and one syllable. It appears 2.7 times per million words in written English, the 16,455th most frequent word form (wordfreq, 2021 data). As a noun, mos means “singular of mores (“moral norms or customs”)” (English Wiktionary, September 2026). The plural of mos is mores.

How many letters and syllables are in mos?

Letters3: M-O-S
Syllables1 (from its American pronunciation)
In writing2.7 times per million words; the 16,455th most frequent word form
Wrong spellings searchednone measured in search
Same letters

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.

How common is mos?

Mos appears 2.7 times per million words in written English, the 16,455th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce mos?

    Mos has one syllable (counted from its American pronunciation in the CMU Pronouncing Dictionary).

    Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

    What rhymes with mos?

    No other word on PlainSpell ends in the same sounds as mos.

    Spelled with the same letters in another order: som, osm.

    Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).

    Forms of mos

    • mores plural

    Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

    What does mos mean?

    The meanings the English Wiktionary records, quoted as written there (source below).

    noun

    1. 1

      raresingular of mores (“moral norms or customs”) (a form of mores)

    2. 2

      plural of mo (“month; molester”) (a form of mo)

    noun

    as MoS
    1. 1

      Alternative letter-case form of MOS (“manual of style”).

    noun

    as MOS
    1. 1

      Initialism of metal oxide semiconductor.

    2. 2

      Initialism of maintenance operating system.

    3. 3

      Initialism of mobile operating system.

    4. 4

      Initialism of member of the opposite sex.

    5. 5

      Initialism of military occupational specialty.

      "I was a marine. My MOS was 0311," he said.

    6. 6

      Initialism of member of the service.

      "We have an MOS down," the dispatcher said.

    7. 7

      Initialism of manual of style.

    8. 8

      Initialism of man on the street.

    phrase

    as MOS
    1. 1

      Without a synchronous audio track.

    noun

    as MOs
    1. 1

      plural of MO (a form of MO)

    Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

    Where does mos come from?

    See the etymology of the corresponding lemma form.

    Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

    What to look up after mos