EACvseftWhich spelling fits?

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

Which to use

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

#43,617
“EAC” frequency rank
#49,891
“eft” frequency rank
93508
confusion score

Side-by-Side Comparison

Feature EAC eft
Definition Abbreviation of European Astronaut Centre. A newt, especially a smooth newt (Lissotriton vulgaris, syn. Triturus punctatus), of Europe.

Where the eye mixes EAC and eft

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. EAC (VVC) and eft (VCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
EAC
3 ch
eft

Visual trap between EAC and eft

These two trip readers on the page rather than in the ear: EAC is /i.eɪ.si/ while eft is /ɛft/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 93508, derived from the frequency rank of both members and their visual similarity.

EAC is recorded at frequency rank #43,617, classified as aname, pronounced /i.eɪ.si/. eft is at rank #49,891, tagged as anoun, pronounced /ɛft/.

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 93508, this pair ranks #1,875 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of EAC vs eft

Shared letters: e. Private to "EAC": ac. Private to "eft": ft.

"EAC" · 3 letters · shape VVC  ·  "eft" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "EAC" for "eft" ever safe?
No - they are not even the same part of speech. "EAC" is a name and "eft" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "EAC" or "eft"?
"EAC" is the more common of the two: it sits at frequency rank #43,617 in our English list, against #49,891 for "eft". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "EAC" and "eft" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "EAC" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "eft" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,875 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "EAC" and "eft" also get mixed up with nearby pairs, the highest-scored neighbour is "eft vs Eri". Nearby pair

Confusion rank #1,875 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