weakenvsweaponWhat's the difference?

Quick tell: weaken is a verb, weapon is a noun, so they fill different roles in a sentence.

Which to use

“weaken” is a verb and “weapon” is a noun - they look or sound alike but fill different roles in a sentence.

#15,305
“weaken” frequency rank
#2,812
“weapon” frequency rank
18117
confusion score

Side-by-Side Comparison

Feature weaken weapon
Definition To make weaker or less strong. An instrument of attack or defense in combat or hunting, e.g. most guns, missiles, or swords.

Where the eye mixes weaken and weapon

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

6 ch
weaken
6 ch
weapon

Visual trap between weaken and weapon

These two trip readers on the page rather than in the ear: weaken is /ˈwikən/ while weapon is /ˈwɛp.ən/. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 18117, derived from the frequency rank of both members and their visual similarity.

weaken is recorded at frequency rank #15,305, classified as averb, pronounced /ˈwikən/. weapon is at rank #2,812, tagged as anoun, pronounced /ˈwɛp.ən/.

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 18117, this pair ranks #446,988 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of weaken vs weapon

Shared letters: aenw. Private to "weaken": k. Private to "weapon": op.

"weaken" · 6 letters · shape CVVCVC  ·  "weapon" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • weaken ← ewaken · waeken · weaekn · weakenn · weakken · weakne · wekaen · wweaken
  • weapon ← ewapon · waepon · weaopn · weapno · weaponn · weappon · wepaon · wweapon

Frequently Asked Questions

Can "weaken" and "weapon" be used interchangeably?
No - they are not even the same part of speech. "weaken" is a verb and "weapon" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "weaken" or "weapon"?
"weapon" is the more common of the two: it sits at frequency rank #2,812 in our English list, against #15,305 for "weaken". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "weaken" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "weapon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #446,988 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "weaken" and "weapon" also get mixed up with nearby pairs, the highest-scored neighbour is "weaken vs Whalen". 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 #446,988 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