weirvswellTell them apart

Quick tell: weir is a noun, well is an adverb, so they fill different roles in a sentence.

Which to use

“weir” is a noun and “well” is an adverb - they look or sound alike but fill different roles in a sentence.

#14,670
“weir” frequency rank
#99
“well” frequency rank
14769
confusion score

Side-by-Side Comparison

Feature weir well
Definition An adjustable dam placed across a river to regulate the flow of water downstream. Accurately, competently, satisfactorily.

Where the eye mixes weir and well

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
weir
4 ch
well

Look-alike desk: weir vs well

These two trip readers on the page rather than in the ear: weir is /wɪə̯/ while well is /ˈwɛl/. 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 (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 14769, derived from the frequency rank of both members and their visual similarity.

weir is recorded at frequency rank #14,670, classified as anoun, pronounced /wɪə̯/. well is at rank #99, tagged as anadv, pronounced /ˈwɛl/.

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 14769, this pair ranks #468,044 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of weir vs well

Shared letters: ew. Private to "weir": ir. Private to "well": l.

"weir" · 4 letters · shape CVVC  ·  "well" · 4 letters · shape CVCC

Known mistypes of this pair

  • weirewir · weirr · weri · wweir
  • wellewll · wel · wlel · wwell

Frequently Asked Questions

Do "weir" and "well" mean the same thing in a sentence?
No - they are not even the same part of speech. "weir" is a noun and "well" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "weir" or "well" show up more?
"well" is the more common of the two: it sits at frequency rank #99 in our English list, against #14,670 for "weir". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "weir" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "well" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #468,044 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "weir" and "well" also get mixed up with nearby pairs, the highest-scored neighbour is "weir vs werk". 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 #468,044 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