GUIvsgunWhat's the difference?

Which to use

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

#19,850
“GUI” frequency rank
#1,168
“gun” frequency rank
21018
confusion score

Side-by-Side Comparison

Feature GUI gun
Definition Initialism of graphical user interface. A device for shooting projectiles or ditto (a shooter), functioning through stored energy: a firearm, cannon, harpoon gun/spear gun, raygun, etc, not a bow and arrow, or slingshot.

Where the eye mixes GUI and gun

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
GUI
3 ch
gun

Why the eye confuses GUI with gun

A purely visual mix-up. GUI (/ˈdʒiːjuːaɪ/) and gun (/ˈɡʌn/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - i in “GUI” becomes n in “gun”. Our composite confusion score for this pair is 21018, derived from the frequency rank of both members and their visual similarity.

GUI is recorded at frequency rank #19,850, classified as anoun, pronounced /ˈdʒiːjuːaɪ/. gun is at rank #1,168, tagged as anoun, pronounced /ˈɡʌn/.

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 21018, this pair ranks #427,001 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of GUI vs gun

Shared letters: gu. Private to "GUI": i. Private to "gun": n.

"GUI" · 3 letters · shape CVV  ·  "gun" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "GUI" for "gun" ever safe?
No. They are said differently (/ˈdʒiːjuːaɪ/ versus /ˈɡʌn/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "GUI" or "gun" show up more?
"gun" is the more common of the two: it sits at frequency rank #1,168 in our English list, against #19,850 for "GUI". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "GUI" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "gun" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #427,001 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "GUI" and "gun" also get mixed up with nearby pairs, the highest-scored neighbour is "gib vs GUI". Nearby pair

Confusion rank #427,001 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