exonvsExxonWhat's the difference?

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

Which to use

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

#49,909
“exon” frequency rank
#25,381
“Exxon” frequency rank
75290
confusion score

Side-by-Side Comparison

Feature exon Exxon
Definition An officer of the King's Body Guard of the Yeomen of the Guard. A trade name of ExxonMobil, primarily used in the United States of America.

Where the spellings diverge

Shared letters are muted; the letters that actually set exon and Exxon apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

4 ch
exon
5 ch
Exxon

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: exon is anoun and Exxonaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 75290, derived from the frequency rank of both members and their visual similarity.

exon is recorded at frequency rank #49,909, classified as anoun. Exxon is at rank #25,381, 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 75290, this pair ranks #33,603 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of exon vs Exxon

Shared letters: enox. Private to "exon": -. Private to "Exxon": -.

"exon" · 4 letters · shape VCVC  ·  "Exxon" · 5 letters · shape VCCVC

Known mistypes of this pair

  • exoneoxn · exno · exonn · xeon
  • Exxonexoxn · exxno · exxonn · xexon

Frequency comparison

exon#49,909
Exxon#25,381

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "exon" and "Exxon" be used interchangeably?
No - they are not even the same part of speech. "exon" is a noun and "Exxon" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "exon" or "Exxon"?
"Exxon" is the more common of the two: it sits at frequency rank #25,381 in our English list, against #49,909 for "exon". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering exon vs Exxon

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “exon”; for a name, it's “Exxon”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “exon” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list