combinatorics

/ˌkɑm.bɪn.əˈtɔɹ.ɪks/

//ˌkɑm.bɪn.əˈtɔɹ.ɪks// noun

By · According to Wiktionary data (CC BY-SA) ·

"combinatorics" is a 13-letter English headword indexed on PlainSpell.

The verdict

“combinatorics” is uncommon English (frequency #72,195 among 5,599 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#72,195
frequency rank, English
5,599
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - a branch of mathematics that studies (usually finite) collections of objects that satisfy specified criteria

Corpus desk

Index EN-combinatorics · combinatorics · English

combinatorics · rank #72,195 · 0 variants · 0 confusables

  • FREQ-RARE #72,195
  • LEN-MEGA 13 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH commentate

Nearest frequency peer: commentate (+1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “combinatorics”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “combinatorics” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for combinatorics
PropertyValue
Headwordcombinatorics
LanguageEnglish
Part of speechNoun
IPA/ˌkɑm.bɪn.əˈtɔɹ.ɪks/
Letters13
Frequency rank#72,195
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “combinatorics” in English

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

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “commentate” (#72,196), “COF” (#72,193), “comradeship” (#72,198). Among 5,599 “C” headwords, “combinatorics” is #72,195. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

combinatorics is uncommon English at frequency #72,195 among 5,599 “C” headwords, classed as anoun, transcribed /ˌkɑm.bɪn.əˈtɔɹ.ɪks/. Rarity is why readers land here mid-draft. Gloss: "a branch of mathematics that studies (usually finite) collections of objects that satisfy specified criteria".

No generated misspelling entries exist for combinatorics in our index, which points to an orthography that plays by predictable English rules. This entry stands alone in our confusable dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Our source data has no etymology on file for this entry, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is combinatorics, spelled C-O-M-B-I-N-A-T-O-R-I-C-S.

Definition

  1. 1
    a branch of mathematics that studies (usually finite) collections of objects that satisfy specified criteria

This word in other languages

combinatoria(Español)combinatoire(Français)Kombinatorik(Deutsch)

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 "combinatorics"?
"combinatorics" is spelled C-O-M-B-I-N-A-T-O-R-I-C-S. The IPA pronunciation is /ˌkɑm.bɪn.əˈtɔɹ.ɪks/.
What does "combinatorics" mean?
As a noun, "combinatorics" means: a branch of mathematics that studies (usually finite) collections of objects that satisfy specified criteria
How do you pronounce "combinatorics"?
The IPA (International Phonetic Alphabet) transcription for "combinatorics" is /ˌkɑm.bɪn.əˈtɔɹ.ɪks/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "combinatorics" come from?
"combinatorics" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "combinatorics", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 13 letters (nearest by frequency rank).

dimensionally#72,239electromagnet#72,271erythematosus#72,282anticlimactic#72,088

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

Source: FrequencyWords open word-frequency list