reducible
"reducible" is a 9-letter English headword indexed on PlainSpell.
The verdict
“reducible” is uncommon English (frequency #71,048 among 21,470 “R” headwords), classed as an adjective. The kind of spelling people second-guess.
- #71,048
- frequency rank, English
- 21,470
- “R” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Capable of being reduced.
| Property | Value |
|---|---|
| Headword | reducible |
| Language | English |
| Part of speech | Adjective |
| Letters | 9 |
| Frequency rank | #71,048 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “reducible” sits in English frequency
Rare enough to double-check
reducible is uncommon English at frequency #71,048 among 21,470 “R” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 4 senses are on record.
reducible has no tracked misspelling variants, a sign its spelling follows regular English conventions. 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 reduce + -ible. The correct English form is reducible, spelled R-E-D-U-C-I-B-L-E.
Definition
- 1Capable of being reduced.
- 2Able to be factored into polynomials of lower degree, as x²-1.
- 3Able to be factored into smaller integers; composite.
- 4Containing a sphere of codimension 1 that is not the boundary of a ball.
Etymology
From reduce + -ible.
Antonyms
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
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Using “reducible”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is R-E-D-U-C-I-B-L-E - every other letter order is a misspelling in standard orthography.
- 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.