stop up
"stop-up" is a 6-letter English headword indexed on PlainSpell.
The verdict
“stop up” is outside the top-ranked English vocabulary, used as a verb - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 7
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To fill a hole or cavity, or block (an opening or passage), as with a plug.
| Property | Value |
|---|---|
| Headword | stop up |
| Language | English |
| Part of speech | Verb |
| Letters | 7 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “stop up” sits in English frequency
Spelling & Dictionary Insight
The English entry for stop up is 7 letters long, classified as a verb. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
stop up has no tracked misspelling variants, suggesting the orthography follows predictable English patterns. This headword has no recorded confusable partner, since nothing in our dataset looks or sounds close enough to cause mix-ups.
No explicit etymology string is stored for this entry, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is stop up, spelled S-T-O-P- -U-P.
Definition
- 1To fill a hole or cavity, or block (an opening or passage), as with a plug.
- 2To permanently close or block (a road or path); to legally extinguish a right of way.
- 3To increase the aperture of a photographic lens, moving from an f/stop represented by a higher number to an f/stop represented by a lower number and causing more light to pass into the camera.
Antonyms
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “stop up”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-T-O-P- -U-P - every other letter order is a misspelling in standard orthography.
- 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.