Which to use
“erg” and “eth” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #48,222
- “erg” frequency rank
- #22,077
- “eth” frequency rank
- 70299
- confusion score
Side-by-Side Comparison
| Feature | erg | eth |
|---|---|---|
| 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 letter (capital Ð, small ð) introduced into Old English to represent its dental fricative, then not distinguished from the letter thorn, no longer used in English but still in modern use in Icelandic, the IPA and other phonetic alphabets to represent the voiced dental fricative "th" sound as in the English word then. The letter is also used in Faroese, but is generally silent in that language. |
Where the eye mixes erg and eth
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between erg and eth
A purely visual mix-up. erg (/ɜːɡ/) and eth (/ɛð/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 70299, 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/. eth is at rank #22,077, tagged as anoun, pronounced /ɛð/.
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 70299, this pair ranks #51,103 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of erg vs eth
Shared letters: e. Private to "erg": gr. Private to "eth": ht.
"erg" · 3 letters · shape VCC · "eth" · 3 letters · shape VCC
Frequently Asked Questions
Do "erg" and "eth" mean the same thing in a sentence?
Which is more common, "erg" or "eth"?
What to do next
Eye-level mix-up between "erg" and "eth" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "erg" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "eth" - compare definitions side by side with the headword page. Word entry
- This pair ranks #51,103 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "erg" and "eth" also get mixed up with nearby pairs, the highest-scored neighbour is "erg vs Eri". Nearby pair
Confusion rank #51,103 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.