sphincter
/ˈsfɪŋk.tɚ/
"sphincter" is a 9-letter English headword indexed on PlainSpell.
The verdict
“sphincter” is a moderately-common English word, ranked #39,102 in English word frequency and used as a noun.
- #39,102
- frequency rank, English
- 9
- letters
- 15
- tracked misspellings
- 3
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | sphincter |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈsfɪŋk.tɚ/ |
| Letters | 9 |
| Frequency rank | #39,102 |
| Misspellings tracked | 15 |
| Confusable pairs | 3 |
| Source | Wiktionary (kaikki.org) |
Where “sphincter” sits in English frequency
Spelling & Dictionary Insight
The English entry for sphincter is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈsfɪŋk.tɚ/. Corpus data places it at rank #39,102 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.".
Our generated misspelling index lists 15 likely wrong-spelling variants for sphincter, with forms such as "pshincter", "shpincter", and "sphhincter". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 3 confusable-pair relationships, "splinter", "sprinter", "spinster", since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: Etymology tree Late Latin sphinctērlbor. English sphincter Learned borrowing from Late Latin sphinctēr (“the muscle of the anus”), from Ancient Greek σφῐγκτήρ (sphĭnktḗr, “lace, band; contractile muscle”), ultimately of Pre-Greek origin. Possibly related to… The correct English form is sphincter, spelled S-P-H-I-N-C-T-E-R.
Definition
- 1A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.
Etymology
Etymology tree Late Latin sphinctērlbor. English sphincter Learned borrowing from Late Latin sphinctēr (“the muscle of the anus”), from Ancient Greek σφῐγκτήρ (sphĭnktḗr, “lace, band; contractile muscle”), ultimately of Pre-Greek origin. Possibly related to sphinx (“the strangler”).
This word in other languages
Common misspellings
Also misspelled as: pshincter,shpincter,sphhincter,sphicnter,sphinccter,sphincetr,sphincterr,sphinctre,sphinctter,sphinncter,sphintcer,sphnicter,spihncter,spphincter,ssphincter
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of sphincter - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.
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 "sphincter"?
What does "sphincter" mean?
What words are commonly confused with "sphincter"?
How do you pronounce "sphincter"?
What is the origin of the word "sphincter"?
Is PlainSpell free to use?
Using “sphincter”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-P-H-I-N-C-T-E-R - every other letter order is a misspelling in standard orthography.
- Say it as /ˈsfɪŋk.tɚ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “splinter” - see the side-by-side comparison. sphincter vs splinter
- 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.