toilvstoxinTell them apart

Which to use

“toil” and “toxin” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#28,054
“toil” frequency rank
#19,722
“toxin” frequency rank
47776
confusion score

Side-by-Side Comparison

Feature toil toxin
Definition Labour, work, especially of a grueling nature. A toxic substance, specifically a poison produced by the biological processes of organisms.

Where the eye mixes toil and toxin

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
toil
5 ch
toxin

Why the eye confuses toil with toxin

A purely visual mix-up. toil (/tɔɪl/) and toxin (/ˈtɒksɪn/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 47776, derived from the frequency rank of both members and their visual similarity.

toil is recorded at frequency rank #28,054, classified as anoun, pronounced /tɔɪl/. toxin is at rank #19,722, tagged as anoun, pronounced /ˈtɒksɪn/.

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 47776, this pair ranks #199,309 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of toil vs toxin

Shared letters: iot. Private to "toil": l. Private to "toxin": nx.

"toil" · 4 letters · shape CVVC  ·  "toxin" · 5 letters · shape CVCVC

Known mistypes of this pair

  • toilotil · tiol · toill · toli · ttoil
  • toxinotxin · toixn · toxinn · toxni · toxxin · ttoxin · txoin

Frequently Asked Questions

Do "toil" and "toxin" mean the same thing in a sentence?
No. They are said differently (/tɔɪl/ versus /ˈtɒksɪn/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "toil" or "toxin"?
"toxin" is the more common of the two: it sits at frequency rank #19,722 in our English list, against #28,054 for "toil". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "toil" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "toxin" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #199,309 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "toil" and "toxin" also get mixed up with nearby pairs, the highest-scored neighbour is "toil vs TTIP". 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 #199,309 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list