era vs ES, What's the Difference?

Which to use

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

#2,153
“era” frequency rank: #7,919
“ES” frequency rank: 10072
confusion score

Side-by-Side Comparison

Feature	era	ES
Definition	A time period of indeterminate length, generally more than one year.	Initialism of Espírito Santo: a state of Brazil.

Letter map: era vs ES

Shared letters muted; letters that set era and ES apart highlighted. Shared run: 1.

3 ch

era

2 ch

Part-of-speech tell for era / ES

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: era is anoun and ESaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 10072, derived from the frequency rank of both members and their visual similarity.

era is recorded at frequency rank #2,153, classified as anoun, pronounced /ˈɪə.ɹə/. ES is at rank #7,919, 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 10072, this pair ranks #494,181 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of era vs ES

Shared letters: e. Private to "era": ar. Private to "ES": s.

"era" · 3 letters · shape VCV · "ES" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "era" for "ES" ever safe?

No - they are not even the same part of speech. "era" is a noun and "ES" a name, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "era" or "ES"?

"era" is the more common of the two: it sits at frequency rank #2,153 in our English list, against #7,919 for "ES". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "era" and "ES".

Full dictionary entry for "era" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "ES" - compare definitions side by side with the headword page. Word entry
This pair ranks #494,181 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"era" and "ES" also get mixed up with nearby pairs, the highest-scored neighbour is "Eri vs ES". Nearby pair

Confusion rank #494,181 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.