dos
/doʊz/noun
dos is spelled D-O-S: 3 letters and one syllable. It appears 4.9 times per million words in written English, the 11,373rd most frequent word form (wordfreq, 2021 data). As a noun, dos means “plural of do” (English Wiktionary, September 2026).
How many letters and syllables are in dos?
| Letters | 3: D-O-S |
|---|---|
| Syllables | 1 (from its American pronunciation) |
| In writing | 4.9 times per million words; the 11,373rd most frequent word form |
| Wrong spellings searched | none 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 dos?
Dos appears 4.9 times per million words in written English, the 11,373rd 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 dos?
- UK /dəʊz/
- US /doʊz/
Dos 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). Recordings: LL-Q1860_(eng)-Persent101-DOS.wav, LL-Q1860_(eng)-Persent101-dos.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with dos?
No other word on PlainSpell ends in the same sounds as dos.
Spelled with the same letters in another order: sod.
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 dos
- do's
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does dos mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
plural of do
- 2
plural of do
noun
- 1
Initialism of date of service.
- 2
Initialism of date of separation.
- 3
Initialism of denial of service.
- 4
Initialism of density of states.
- 5
Initialism of director of studies.
- 6
Initialism of disk operating system
- 7
Initialism of death on scene.
noun
- 1
A denial-of-service attack.
- 2
A Director of Studies; someone who oversees the scholarly aspects of an institution, including faculty development and curriculum design.
verb
- 1
To commit a denial-of-service attack against.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Dos in Spanish, French, German and Portuguese
In the sense disk operating system:
| Language | Words |
|---|---|
| French | DOS |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.