loughvsLugoWhich spelling fits?

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

Which to use

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

#35,390
“lough” frequency rank
#47,172
“Lugo” frequency rank
82562
confusion score

Side-by-Side Comparison

Feature lough Lugo
Definition A lake or long, narrow inlet, especially in Ireland. A city of the province of the same name in Galicia, Spain, and its capital.

Where the eye mixes lough and Lugo

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. lough runs 5 letters (CVVCC) against Lugo's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.

5 ch
lough
4 ch
Lugo

Why the eye confuses lough with Lugo

These two trip readers on the page rather than in the ear: lough is /lɑx/ while Lugo is /ˈluː.ɡəʊ/. 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 (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 82562, derived from the frequency rank of both members and their visual similarity.

lough is recorded at frequency rank #35,390, classified as anoun, pronounced /lɑx/. Lugo is at rank #47,172, tagged as aname, pronounced /ˈluː.ɡəʊ/.

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 82562, this pair ranks #15,510 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of lough vs Lugo

Shared letters: glou. Private to "lough": h. Private to "Lugo": -.

"lough" · 5 letters · shape CVVCC  ·  "Lugo" · 4 letters · shape CVCV

Known mistypes of this pair

  • lough ← llough · loguh · louggh · loughh · louhg · luogh · olugh
  • Lugo ← lguo · llugo · luggo · luog · ulgo

Frequently Asked Questions

Is swapping "lough" for "Lugo" ever safe?
No - they are not even the same part of speech. "lough" is a noun and "Lugo" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "lough" vs "Lugo" - which ranks higher?
"lough" is the more common of the two: it sits at frequency rank #35,390 in our English list, against #47,172 for "Lugo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "lough" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Lugo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #15,510 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "lough" and "Lugo" also get mixed up with nearby pairs, the highest-scored neighbour is "Lugo vs lum". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #15,510 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