Which to use
“slap” is a noun and “sup” is a verb - they look or sound alike but fill different roles in a sentence.
- #7,502
- “slap” frequency rank
- #13,818
- “sup” frequency rank
- 21320
- confusion score
Side-by-Side Comparison
| Feature | slap | sup |
|---|---|---|
| Definition | A blow, especially one given with the open hand, or with something broad and flat. | To sip; to take a small amount of food or drink into the mouth, especially with a spoon. |
Where the eye mixes slap and sup
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses slap with sup
These two trip readers on the page rather than in the ear: slap is /slæp/ while sup is /sʌp/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 21320, derived from the frequency rank of both members and their visual similarity.
slap is recorded at frequency rank #7,502, classified as anoun, pronounced /slæp/. sup is at rank #13,818, tagged as averb, pronounced /sʌp/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 21320, this pair ranks #424,753 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of slap vs sup
Shared letters: ps. Private to "slap": al. Private to "sup": u.
"slap" · 4 letters · shape CCVC · "sup" · 3 letters · shape CVC
Known mistypes of this pair
- slap ← lsap · salp · slapp · sllap · slpa · sslap
Frequently Asked Questions
Can "slap" and "sup" be used interchangeably?
In ordinary English text, does "slap" or "sup" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "slap" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sup" - compare definitions side by side with the headword page. Word entry
- This pair ranks #424,753 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "slap" and "sup" also get mixed up with nearby pairs, the highest-scored neighbour is "sup vs sura". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #424,753 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.