Which to use
“selfish” is an adjective and “shellfish” is a noun - they look or sound alike but fill different roles in a sentence.
- #6,009
- “selfish” frequency rank
- #23,991
- “shellfish” frequency rank
- 30000
- confusion score
Side-by-Side Comparison
| Feature | selfish | shellfish |
|---|---|---|
| Definition | Holding one's own self-interest as the standard for decision making. | A fisheries and colloquial term for an aquatic invertebrate having an inner or outer shell, such as a mollusc or crustacean, especially when edible. |
Where the eye mixes selfish and shellfish
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.
Visual trap between selfish and shellfish
These two trip readers on the page rather than in the ear: selfish is /ˈsɛlf.ɪʃ/ while shellfish is /ˈʃɛl.fɪʃ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 30000, derived from the frequency rank of both members and their visual similarity.
selfish is recorded at frequency rank #6,009, classified as anadj, pronounced /ˈsɛlf.ɪʃ/. shellfish is at rank #23,991, tagged as anoun, pronounced /ˈʃɛl.fɪʃ/.
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 30000, this pair ranks #358,227 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of selfish vs shellfish
Shared letters: efhils. Private to "selfish": -. Private to "shellfish": -.
"selfish" · 7 letters · shape CVCCVCC · "shellfish" · 9 letters · shape CCVCCCVCC
Known mistypes of this pair
Frequently Asked Questions
Do "selfish" and "shellfish" mean the same thing in a sentence?
Which is more common, "selfish" or "shellfish"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "selfish" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "shellfish" - compare definitions side by side with the headword page. Word entry
- This pair ranks #358,227 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "selfish" and "shellfish" also get mixed up with nearby pairs, the highest-scored neighbour is "selfish vs selfishly". 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 #358,227 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.