MercervsmercuryWhich spelling fits?

Quick tell: Mercer is a name, mercury is a noun, so they fill different roles in a sentence.

Which to use

“Mercer” is a name and “mercury” is a noun - they look or sound alike but fill different roles in a sentence.

#32,069
“Mercer” frequency rank
#27,877
“mercury” frequency rank
59946
confusion score

Side-by-Side Comparison

Feature Mercer mercury
Definition Mercier. (nomenclature UICPA) Mercure (l’élément chimique Hg).

Letter map: Mercer vs mercury

Shared letters muted; letters that set Mercer and mercury apart highlighted. Shared run: 5. Mercer runs 6 letters (CVCCVC) against mercury's 7 (CVCCVCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
Mercer
7 ch
mercury

Grammar separator: Mercer vs mercury

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Mercer is aname and mercuryanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 59946, derived from the frequency rank of both members and their visual similarity.

Mercer is recorded at frequency rank #32,069, classified as aname. mercury is at rank #27,877, tagged as anoun, pronounced \ˈməː.kjʊ.ɹi\.

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 59946, this pair ranks #100,285 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of Mercer vs mercury

Shared letters: cemr. Private to "Mercer": -. Private to "mercury": uy.

"Mercer" · 6 letters · shape CVCCVC  ·  "mercury" · 7 letters · shape CVCCVCV

Known mistypes of this pair

  • Mercer ← emrcer · mecrer · merccer · mercerr · mercre · merecr · merrcer · mmercer
  • mercury ← emrcury · mecrury · merccury · mercruy · mercurry · mercuryy · mercuyr · merrcury

Frequently Asked Questions

Can "Mercer" and "mercury" be used interchangeably?
No - they are not even the same part of speech. "Mercer" is a name and "mercury" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Mercer" vs "mercury" - which ranks higher?
"mercury" is the more common of the two: it sits at frequency rank #27,877 in our French list, against #32,069 for "Mercer". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "Mercer" and "mercury". Here's where to go from here.

  • Full dictionary entry for "Mercer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mercury" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #100,285 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Mercer" and "mercury" also get mixed up with nearby pairs, the highest-scored neighbour is "Meier vs Mercer". 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 #100,285 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list