halitosis

/hæl.ɪˈtəʊ.sɪs/

//hæl.ɪˈtəʊ.sɪs// noun

"halitosis" is a 9-letter English headword indexed on PlainSpell.

The verdict

“halitosis” is uncommon English (frequency #84,335 among 23,837 “H” headwords), classed as a noun. The kind of spelling people second-guess.

#84,335
frequency rank, English
23,837
“H” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The condition of having stale or foul-smelling breath.

Key facts for halitosis
PropertyValue
Headwordhalitosis
LanguageEnglish
Part of speechNoun
IPA/hæl.ɪˈtəʊ.sɪs/
Letters9
Frequency rank#84,335
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “halitosis” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). halitosis lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

halitosis is uncommon English at frequency #84,335 among 23,837 “H” headwords, classed as anoun, transcribed /hæl.ɪˈtəʊ.sɪs/. Rarity is why readers land here mid-draft. Gloss: "The condition of having stale or foul-smelling breath.".

Our edit-distance generator produced no likely misspellings for halitosis, suggesting the orthography follows predictable English patterns. We don't track a confusable pairing for this entry, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Coined by doctor Joseph William Howe in 1874 and described as being derived from the Latin hālitus (literally “whiff, breath”) and the Ancient Greek νόσος (nósos, literally “disease”). It can be also understood as combination of the Latin hālitus and the En… The correct English form is halitosis, spelled H-A-L-I-T-O-S-I-S.

Definition

  1. 1
    The condition of having stale or foul-smelling breath.

Etymology

Coined by doctor Joseph William Howe in 1874 and described as being derived from the Latin hālitus (literally “whiff, breath”) and the Ancient Greek νόσος (nósos, literally “disease”). It can be also understood as combination of the Latin hālitus and the English suffix -osis.

Synonyms

bromopneafetor orisozostomiastomatodysodia

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "halitosis"?
"halitosis" is spelled H-A-L-I-T-O-S-I-S. The IPA pronunciation is /hæl.ɪˈtəʊ.sɪs/.
What does "halitosis" mean?
As a noun, "halitosis" means: The condition of having stale or foul-smelling breath.
How do you pronounce "halitosis"?
The IPA (International Phonetic Alphabet) transcription for "halitosis" is /hæl.ɪˈtəʊ.sɪs/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "halitosis"?
Coined by doctor Joseph William Howe in 1874 and described as being derived from the Latin hālitus (literally “whiff, breath”) and the Ancient Greek νόσος (nósos, literally “disease”). It can be also understood as combination of the Latin hālitus ... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “halitosis”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is H-A-L-I-T-O-S-I-S - every other letter order is a misspelling in standard orthography.
  • Say it as /hæl.ɪˈtəʊ.sɪs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list