ughvsupWhich spelling fits?

Quick tell: ugh is a intj, up is an adverb, so they fill different roles in a sentence.

Which to use

“ugh” is an intj and “up” is an adverb - they look or sound alike but fill different roles in a sentence.

#43,199
“ugh” frequency rank
#2,060
“up” frequency rank
45259
confusion score

Side-by-Side Comparison

Feature ugh up
Definition Mot utilisé pour indiquer la sagesse prêtée aux Indiens d’Amérique du Nord, souvent en levant une main, la paume ouverte vers l'avant. Dans un forum, mot explétif ajouté au début d'un commentaire ancien afin que celui-ci remonte automatiquement en haut de liste.

Where the eye mixes ugh and up

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
ugh
2 ch
up

Why the eye confuses ugh with up

These two trip readers on the page rather than in the ear: ugh is \yɡ\ while up is \œp\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (intj vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 45259, derived from the frequency rank of both members and their visual similarity.

ugh is recorded at frequency rank #43,199, classified as anintj, pronounced \yɡ\. up is at rank #2,060, tagged as anadv, pronounced \œp\.

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 45259, this pair ranks #204,133 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ugh vs up

Shared letters: u. Private to "ugh": gh. Private to "up": p.

"ugh" · 3 letters · shape VCC  ·  "up" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "ugh" for "up" ever safe?
No - they are not even the same part of speech. "ugh" is an intj and "up" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "ugh" or "up" show up more?
"up" is the more common of the two: it sits at frequency rank #2,060 in our French list, against #43,199 for "ugh". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "ugh" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "up" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #204,133 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ugh" and "up" also get mixed up with nearby pairs, the highest-scored neighbour is "Ubu vs ugh". Nearby pair

Confusion rank #204,133 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list