weakervsweaselWhich spelling fits?

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

Which to use

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

#8,503
“weaker” frequency rank
#22,861
“weasel” frequency rank
31364
confusion score

Side-by-Side Comparison

Feature weaker weasel
Definition comparative form of weak: more weak Any of the carnivorous mammals of the genera Mustela, Neogale, Poecilogale, and Lyncodon, having a slender body, a long tail and usually a light brown upper coat and light-coloured belly.

Where the eye mixes weaker and weasel

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
weaker
6 ch
weasel

Visual trap between weaker and weasel

These two trip readers on the page rather than in the ear: weaker is /ˈwiːkə/ while weasel is /ˈwiːz(ə)l/. 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 31364, derived from the frequency rank of both members and their visual similarity.

weaker is recorded at frequency rank #8,503, classified as anadj, pronounced /ˈwiːkə/. weasel is at rank #22,861, tagged as anoun, pronounced /ˈwiːz(ə)l/.

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 31364, this pair ranks #346,781 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of weaker vs weasel

Shared letters: aew. Private to "weaker": kr. Private to "weasel": ls.

"weaker" · 6 letters · shape CVVCVC  ·  "weasel" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • weakerewaker · waeker · weaekr · weakerr · weakker · weakre · wekaer · wweaker
  • weaselewasel · waesel · weaesl · weasell · weasle · weassel · wesael · wweasel

Frequently Asked Questions

Is swapping "weaker" for "weasel" ever safe?
No - they are not even the same part of speech. "weaker" is an adjective and "weasel" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "weaker" or "weasel"?
"weaker" is the more common of the two: it sits at frequency rank #8,503 in our English list, against #22,861 for "weasel". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "weaker" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "weasel" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #346,781 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "weaker" and "weasel" also get mixed up with nearby pairs, the highest-scored neighbour is "weasel vs Wessex". 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 #346,781 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