ozone
/ˈoʊzoʊn/noun, verb
ozone is spelled O-Z-O-N-E: 5 letters and 2 syllables. It appears 2.6 times per million words in written English, the 16,687th most frequent word form (wordfreq, 2021 data). As a noun, ozone means “An allotrope of oxygen (symbol O₃) having three atoms in the molecule instead of the usual two; it is a toxic gas, generated from oxygen by…” (English Wiktionary, September 2026). The plural of ozone is ozones.
How many letters and syllables are in ozone?
| Letters | 5: O-Z-O-N-E |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | 2.6 times per million words; the 16,687th most frequent word form |
| Wrong spellings searched | none measured in search |
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).
How common is ozone?
Ozone appears 2.6 times per million words in written English, the 16,687th 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 ozone?
- UK /ˈəʊzəʊn/
- UK /ə(ʊ)ˈzəʊn/
- US /ˈoʊzoʊn/
Ozone has 2 syllables (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: En-us-ozone.ogg, Wikimedia Commons (author and licence on each file's page).
Forms of ozone
- ozones plural, present, singular, he/she/it
- ozoning participle, present
- ozoned participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does ozone mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
An allotrope of oxygen (symbol O₃) having three atoms in the molecule instead of the usual two; it is a toxic gas, generated from oxygen by electrical discharge.
- 2
UKinformalFresh air, especially that breathed at the seaside and smelling of seaweed.
verb
- 1
To treat with ozone.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Ozone in Spanish, French, German and Portuguese
In the sense O3:
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.
Where does ozone come from?
From German Ozon, coined 1840 by Christian Friedrich Schönbein, from Ancient Greek ὄζον (ózon), neuter participle of ὄζω (ózō, “I smell”), in reference to its pungent odour. The “fresh air” sense is from an erroneous former belief that seaweed contains and releases ozone.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).