Which to use
“erg” is a noun and “erm” is an intj - they look or sound alike but fill different roles in a sentence.
- #48,222
- “erg” frequency rank
- #21,789
- “erm” frequency rank
- 70011
- confusion score
Side-by-Side Comparison
| Feature | erg | erm |
|---|---|---|
| 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. | Used in hesitant speech, or to express uncertainty. |
Where the eye mixes erg and erm
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: erg vs erm
These two trip readers on the page rather than in the ear: erg is /ɜːɡ/ while erm is /ɜːm/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - g in “erg” becomes m in “erm”, and the parts of speech differ too (noun vs intj), which is usually the fastest check. Our composite confusion score for this pair is 70011, 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/. erm is at rank #21,789, tagged as anintj, pronounced /ɜːm/.
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 70011, this pair ranks #52,273 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of erg vs erm
Shared letters: er. Private to "erg": g. Private to "erm": m.
"erg" · 3 letters · shape VCC · "erm" · 3 letters · shape VCC
Frequently Asked Questions
Do "erg" and "erm" mean the same thing in a sentence?
Frequency check: "erg" vs "erm" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "erg" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "erm" - compare definitions side by side with the headword page. Word entry
- This pair ranks #52,273 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "erg" and "erm" also get mixed up with nearby pairs, the highest-scored neighbour is "erg vs Eri". Nearby pair
Confusion rank #52,273 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.