ergvsEriWhich spelling fits?

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

Which to use

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

#48,222
“erg” frequency rank
#49,902
“Eri” frequency rank
98124
confusion score

Side-by-Side Comparison

Feature erg Eri
Definition A unit of work or energy, being the amount of work done by a force of one dyne applied through a distance of one centimeter. Equal to 10⁻⁷ joules. A female given name from Japanese.

Letter map: erg vs Eri

Shared letters muted; letters that set erg and Eri apart highlighted. Shared run: 2. erg (VCC) and Eri (VCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
erg
3 ch
Eri

Grammar separator: erg vs Eri

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: erg is anoun and Erianame. On the page they differ by a single letter - g in “erg” becomes i in “Eri”. Our composite confusion score for this pair is 98124, derived from the frequency rank of both members and their visual similarity.

erg is recorded at frequency rank #48,222, classified as anoun, pronounced /ɜːɡ/. Eri is at rank #49,902, tagged as aname.

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 98124, this pair ranks #186 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of erg vs Eri

Shared letters: er. Private to "erg": g. Private to "Eri": i.

"erg" · 3 letters · shape VCC  ·  "Eri" · 3 letters · shape VCV

Frequently Asked Questions

Do "erg" and "Eri" mean the same thing in a sentence?
No - they are not even the same part of speech. "erg" is a noun and "Eri" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "erg" vs "Eri" - which ranks higher?
"erg" is the more common of the two: it sits at frequency rank #48,222 in our English list, against #49,902 for "Eri". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "erg" and "Eri". Here's where to go from here.

  • Full dictionary entry for "erg" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Eri" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #186 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "erg" and "Eri" also get mixed up with nearby pairs, the highest-scored neighbour is "eft vs Eri". Nearby pair

Confusion rank #186 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