propyl
/ˈpɹoʊpəl/
"propyl" is a 6-letter English headword indexed on PlainSpell.
The verdict
“propyl” is uncommon English (frequency #96,382 among 46,516 “P” headwords), classed as a noun. The kind of spelling people second-guess.
- #96,382
- frequency rank, English
- 46,516
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Either of two isomeric univalent hydrocarbon radicals, C₃H₇, formally derived from propane by the loss of a hydrogen atom.
Corpus desk
Index EN-propyl · propyl · English
propyl · rank #96,382 · 0 variants · 0 confusables
- FREQ-RARE #96,382
- LEN-LONG 6 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 46,516
- PHOTO-FINISH propagator
Nearest frequency peer: propagator (-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.
Frequency neighbourhood for “propyl”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- pretentious…
pretentiousness
3,625 corpus weight
- problemo
problemo
3,623 corpus weight
- progeria
progeria
3,621 corpus weight
- propagator
propagator
3,620 corpus weight
- propyl
propyl
3,619 corpus weight
- putatively
putatively
3,615 corpus weight
What this shows Bars show where “propyl” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | propyl |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈpɹoʊpəl/ |
| Letters | 6 |
| Frequency rank | #96,382 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “propyl” sits in English frequency
Rare enough to double-check
propyl is uncommon English at frequency #96,382 among 46,516 “P” headwords, classed as anoun, transcribed /ˈpɹoʊpəl/. Rarity is why readers land here mid-draft. Gloss: "Either of two isomeric univalent hydrocarbon radicals, C₃H₇, formally derived from propane by the loss of a hydrogen atom.".
Our edit-distance generator produced no likely misspellings for propyl, since its letter pattern doesn't lend itself to common typo substitutions. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From the chemical prefix propyl-, from propylic or directly from earlier French propylique, from prop(ionique) + -yle + -ique, where -yle, as in French méthylène, is from ὕλη (húlē, “wood, substance”). The correct English form is propyl, spelled P-R-O-P-Y-L.
Definition
- 1Either of two isomeric univalent hydrocarbon radicals, C₃H₇, formally derived from propane by the loss of a hydrogen atom.
Etymology
From the chemical prefix propyl-, from propylic or directly from earlier French propylique, from prop(ionique) + -yle + -ique, where -yle, as in French méthylène, is from ὕλη (húlē, “wood, substance”).
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
How do you spell "propyl"?
What does "propyl" mean?
How do you pronounce "propyl"?
What is the origin of the word "propyl"?
Is PlainSpell free to use?
Similar English words by spelling shape
Same letter count and similar misspelling depth for "propyl", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 6 letters (nearest by frequency 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.