examvsexonWhat's the difference?

Which to use

“exam” and “exon” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#4,598
“exam” frequency rank
#49,909
“exon” frequency rank
54507
confusion score

Side-by-Side Comparison

Feature exam exon
Definition Clipping of examination, especially when meaning “test” or in compound terms. An officer of the King's Body Guard of the Yeomen of the Guard.

Where the spellings diverge

Shared letters are muted; the letters that actually set exam and exon apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch
exam
4 ch
exon

Spelling & Dictionary Insight

exam and exon are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 54507, derived from the frequency rank of both members and their visual similarity.

exam is recorded at frequency rank #4,598, classified as anoun, pronounced /ɪɡˈzæm/. exon is at rank #49,909, tagged as anoun.

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 54507, this pair ranks #140,578 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of exam vs exon

Shared letters: ex. Private to "exam": am. Private to "exon": no.

"exam" · 4 letters · shape VCVC  ·  "exon" · 4 letters · shape VCVC

Known mistypes of this pair

  • exameaxm · examm · exma · exxam · xeam
  • exoneoxn · exno · exonn · xeon

Frequency comparison

exam#4,598
exon#49,909

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "exam" and "exon" be used interchangeably?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Which is more common, "exam" or "exon"?
"exam" is the more common of the two: it sits at frequency rank #4,598 in our English list, against #49,909 for "exon". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering exam vs exon

The fastest way to pick the right one every time.

  • Read both glosses above and match the meaning you intend, only context separates this pair.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “exam” 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