octo
noun
octo is spelled O-C-T-O: 4 letters. It appears about once in every 5 million words in written English, the 65,913th most frequent word form (wordfreq, 2021 data). As a noun, octo means “An octopus (safety device)” (English Wiktionary, September 2026). The plural of octo is octos.
How many letters and syllables are in octo?
| Letters | 4: O-C-T-O |
|---|---|
| In writing | about once in every 5 million words; the 65,913th 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; 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 octo?
Octo appears about once in every 5 million words in written English, the 65,913th 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).
What rhymes with octo?
No other word on PlainSpell ends in the same sounds as octo.
Spelled with the same letters in another order: coot, coto, toco.
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 octo
- octos plural
- before a vowel oct-
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does octo mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
slangAn octopus (safety device).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).