parasite vs parasitic, What's the Difference?

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 spellings diverge

Shared letters are muted; the letters that actually set parasite and parasitic apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.

8 ch

parasite

9 ch

parasitic

Spelling & Dictionary Insight

parasite and parasitic form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. 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.

Frequency comparison

parasite#14,805

parasitic#20,452

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "parasite" and "parasitic" be used interchangeably?

No, "parasite" and "parasitic" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering parasite vs parasitic

The fastest way to pick the right one every time.

Check the role first: if you need a noun, it's “parasite”; for an adjective, it's “parasitic”.
See each word in full, definition, IPA, etymology and its other confusables. Full “parasite” entry
Browse more pairs most likely to be confused. Most confusable