poisedvspoisonTell them apart

Quick tell: poised is a adjective, poison is a noun, so they fill different roles in a sentence.

Which to use

“poised” is an adjective and “poison” is a noun - they look or sound alike but fill different roles in a sentence.

#16,560
“poised” frequency rank
#6,282
“poison” frequency rank
22842
confusion score

Side-by-Side Comparison

Feature poised poison
Definition Possessing poise, having self-confidence. A substance that is harmful or lethal to a living organism when ingested.

Where the eye mixes poised and poison

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. poised and poison follow the identical consonant-vowel pattern (CVVCVC). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
poised
6 ch
poison

Why the eye confuses poised with poison

These two trip readers on the page rather than in the ear: poised is /pɔɪzd/ while poison is /ˈpɔɪ.zən/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 22842, derived from the frequency rank of both members and their visual similarity.

poised is recorded at frequency rank #16,560, classified as anadj, pronounced /pɔɪzd/. poison is at rank #6,282, tagged as anoun, pronounced /ˈpɔɪ.zən/.

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 22842, this pair ranks #413,610 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of poised vs poison

Shared letters: iops. Private to "poised": de. Private to "poison": n.

"poised" · 6 letters · shape CVVCVC  ·  "poison" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • poised ← opised · piosed · poiesd · poisde · poisedd · poissed · posied · ppoised
  • poison ← opison · pioson · poiosn · poisno · poisonn · posion · ppoison

Frequently Asked Questions

Can "poised" and "poison" be used interchangeably?
No - they are not even the same part of speech. "poised" is an adjective and "poison" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "poised" or "poison" show up more?
"poison" is the more common of the two: it sits at frequency rank #6,282 in our English list, against #16,560 for "poised". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "poised" and "poison" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "poised" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "poison" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #413,610 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "poised" and "poison" also get mixed up with nearby pairs, the highest-scored neighbour is "plied vs poised". 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 #413,610 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