nitro
/ˈnaɪtɹəʊ/noun, adjective
nitro is spelled N-I-T-R-O: 5 letters and 2 syllables. It appears 1.7 times per million words in written English, the 21,516th most frequent word form (wordfreq, 2021 data). As a noun, nitro means “The univalent NO₂ functional group” (English Wiktionary, September 2026). The plural of nitro is nitros.
How many letters and syllables are in nitro?
| Letters | 5: N-I-T-R-O |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | 1.7 times per million words; the 21,516th 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 nitro?
Nitro appears 1.7 times per million words in written English, the 21,516th 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 nitro?
- /ˈnaɪtɹəʊ/
Nitro 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: LL-Q1860_(eng)-Vealhurl-nitro.wav, LL-Q1860_(eng)-Flame,_not_lame-nitro-.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with nitro?
No other word on PlainSpell ends in the same sounds as nitro.
Spelled with the same letters in another order: intro, trion.
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 nitro
- nitros plural
- nitr-
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does nitro mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The univalent NO₂ functional group.
- 2
informalNitroglycerin, especially as medication.
- 3
informalA beer that is nitrogenated to give it a more creamy head.
- 4
informalNitromethane.
- 5
informalNitrogen, especially as liquid nitrogen.
8 April 2018 Chomp Squad, "You Can Handel It" Blaze, set the blasters to liquid nitro! We're gonna freeze this lava before it flows any further.
- 6
informalNitrous oxide; the system that adds nitrous oxide to a car engine; by extension, a boost mechanic to speed up cars in a video game.
adjective
- 1
Containing the nitro group.
Nitro compounds tend to be unstable and often explosive.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does nitro come from?
From Ancient Greek νίτρον (nítron). See niter.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).