sputum

/ˈspjutəm/

//ˈspjutəm// noun

"sputum" is a 6-letter English headword indexed on PlainSpell.

The verdict

“sputum” is an uncommon English word, ranked #63,267 in English word frequency and used as a noun.

#63,267
frequency rank, English
6
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Matter coughed up and expectorated from the mouth, composed of saliva and discharges from the respiratory passages such as mucus, phlegm or pus.

Key facts for sputum
PropertyValue
Headwordsputum
LanguageEnglish
Part of speechNoun
IPA/ˈspjutəm/
Letters6
Frequency rank#63,267
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “sputum” 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). sputum lands here:

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

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

Spelling & Dictionary Insight

The English entry for sputum is 6 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈspjutəm/. Corpus data places it at rank #63,267 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Matter coughed up and expectorated from the mouth, composed of saliva and discharges from the respiratory passages such as mucus, phlegm or pus.".

Our edit-distance generator produced no likely misspellings for sputum, a sign its spelling follows regular English conventions. No close-neighbour confusable shows up for this headword in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From New Latin, from Latin sputum (“that which is spit out, spittle”), from spuere (“to spit”). The correct English form is sputum, spelled S-P-U-T-U-M.

Definition

  1. 1
    Matter coughed up and expectorated from the mouth, composed of saliva and discharges from the respiratory passages such as mucus, phlegm or pus.

Etymology

From New Latin, from Latin sputum (“that which is spit out, spittle”), from spuere (“to spit”).

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 "sputum"?
"sputum" is spelled S-P-U-T-U-M. The IPA pronunciation is /ˈspjutəm/.
What does "sputum" mean?
As a noun, "sputum" means: Matter coughed up and expectorated from the mouth, composed of saliva and discharges from the respiratory passages such as mucus, phlegm or pus.
How do you pronounce "sputum"?
The IPA (International Phonetic Alphabet) transcription for "sputum" is /ˈspjutəm/. 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 "sputum"?
From New Latin, from Latin sputum (“that which is spit out, spittle”), from spuere (“to spit”). 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 “sputum”

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

  • The one correct English spelling is S-P-U-T-U-M - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈspjutəm/ (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
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 FrequencyWords open word-frequency list