Which to use
“mer” is a noun and “merci” is an intj - they look or sound alike but fill different roles in a sentence.
- #19,904
- “mer” frequency rank
- #38,047
- “merci” frequency rank
- 57951
- confusion score
Side-by-Side Comparison
| Feature | mer | merci |
|---|---|---|
| Definition | A repeat unit: a structural unit which through repetition forms a polymer. | Thank you. |
Letter map: mer vs merci
Shared letters muted; letters that set mer and merci apart highlighted. Shared run: 3.
Grammar separator: mer vs merci
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: mer is anoun and mercianintj. On the page they differ by 2 extra letter(s) - “mer” sits inside “merci”. Our composite confusion score for this pair is 57951, derived from the frequency rank of both members and their visual similarity.
mer is recorded at frequency rank #19,904, classified as anoun. merci is at rank #38,047, tagged as anintj, pronounced /mɛːˈsiː/.
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 57951, this pair ranks #115,836 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of mer vs merci
Shared letters: emr. Private to "mer": -. Private to "merci": ci.
"mer" · 3 letters · shape CVC · "merci" · 5 letters · shape CVCCV
Known mistypes of this pair
- merci ← emrci · mecri · mercci · meric · merrci · mmerci · mreci
Frequently Asked Questions
Is swapping "mer" for "merci" ever safe?
Frequency check: "mer" vs "merci" - which ranks higher?
After this comparison
Pair "mer" vs "merci" is on the table, pick a follow-up below.
- Full dictionary entry for "mer" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "merci" - compare definitions side by side with the headword page. Word entry
- This pair ranks #115,836 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "mer" and "merci" also get mixed up with nearby pairs, the highest-scored neighbour is "merci vs Merv". 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 #115,836 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.