Which to use
“parasite” is a noun and “parasitic” is an adjective - they look or sound alike but fill different roles in a sentence.
- #14,805
- “parasite” frequency rank
- #20,452
- “parasitic” frequency rank
- 35257
- confusion score
Side-by-Side Comparison
| Feature | parasite | parasitic |
|---|---|---|
| Definition | An organism that lives on or in another organism of a different species, deriving benefit from living on or in that other organism, while not contributing towards that other organism sufficiently to cover the cost to that other organism. | Of or pertaining to a biological or symbolic parasite. |
Where the eye mixes parasite and parasitic
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.
Why the eye confuses parasite with parasitic
These two trip readers on the page rather than in the ear: parasite is /ˈpæɹəˌsaɪt/ while parasitic is /ˌpæɹ.əˈsɪt.ɪk/. 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 adjective), which is usually the fastest check. Our composite confusion score for this pair is 35257, derived from the frequency rank of both members and their visual similarity.
parasite is recorded at frequency rank #14,805, classified as anoun, pronounced /ˈpæɹəˌsaɪt/. parasitic is at rank #20,452, tagged as anadj, pronounced /ˌpæɹ.əˈsɪt.ɪk/.
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 35257, this pair ranks #313,528 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of parasite vs parasitic
Shared letters: aiprst. Private to "parasite": e. Private to "parasitic": c.
"parasite" · 8 letters · shape CVCVCVCV · "parasitic" · 9 letters · shape CVCVCVCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "parasite" for "parasitic" ever safe?
In ordinary English text, does "parasite" or "parasitic" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "parasite" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "parasitic" - compare definitions side by side with the headword page. Word entry
- This pair ranks #313,528 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "parasite" and "parasitic" also get mixed up with nearby pairs, the highest-scored neighbour is "paradise vs parasite". 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 #313,528 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.