presupposition

/pɹiː.sʌ.pəˈzɪ.ʃ(ə)n/

//pɹiː.sʌ.pəˈzɪ.ʃ(ə)n// noun

"presupposition" is a 14-letter English headword indexed on PlainSpell.

The verdict

“presupposition” is uncommon English (frequency #78,955 among 46,516 “P” headwords), classed as a noun. The kind of spelling people second-guess.

#78,955
frequency rank, English
46,516
“P” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An assumption made beforehand; a preliminary conjecture or speculation.

Key facts for presupposition
PropertyValue
Headwordpresupposition
LanguageEnglish
Part of speechNoun
IPA/pɹiː.sʌ.pəˈzɪ.ʃ(ə)n/
Letters14
Frequency rank#78,955
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “presupposition” 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). presupposition 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

presupposition is uncommon English at frequency #78,955 among 46,516 “P” headwords, classed as anoun, transcribed /pɹiː.sʌ.pəˈzɪ.ʃ(ə)n/. Rarity is why readers land here mid-draft. 3 senses are on record.

The misspelling generator found no plausible variants for presupposition, since its letter pattern doesn't lend itself to common typo substitutions. This entry stands alone in our confusable dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From Middle French présupposition, from Latin praesuppositio, from the past participle stem of praesuppōnere (“to presuppose”). The correct English form is presupposition, spelled P-R-E-S-U-P-P-O-S-I-T-I-O-N.

Definition

  1. 1
    An assumption made beforehand; a preliminary conjecture or speculation.
  2. 2
    The act of presupposing.
  3. 3
    An assumption or belief implicit in an utterance or other use of language.

Etymology

From Middle French présupposition, from Latin praesuppositio, from the past participle stem of praesuppōnere (“to presuppose”).

Synonyms

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 "presupposition"?
"presupposition" is spelled P-R-E-S-U-P-P-O-S-I-T-I-O-N. The IPA pronunciation is /pɹiː.sʌ.pəˈzɪ.ʃ(ə)n/.
What does "presupposition" mean?
As a noun, "presupposition" means: An assumption made beforehand; a preliminary conjecture or speculation.
How do you pronounce "presupposition"?
The IPA (International Phonetic Alphabet) transcription for "presupposition" is /pɹiː.sʌ.pəˈzɪ.ʃ(ə)n/. 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 "presupposition"?
From Middle French présupposition, from Latin praesuppositio, from the past participle stem of praesuppōnere (“to presuppose”). 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 “presupposition”

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

  • The one correct English spelling is P-R-E-S-U-P-P-O-S-I-T-I-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /pɹiː.sʌ.pəˈzɪ.ʃ(ə)n/ (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 FrequencyWords open word-frequency list