loughvslouseWhat's the difference?

Which to use

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

#35,390
“lough” frequency rank
#47,167
“louse” frequency rank
82557
confusion score

Side-by-Side Comparison

Feature lough louse
Definition A lake or long, narrow inlet, especially in Ireland. A small parasitic wingless insect of the order Psocodea.

Where the spellings diverge

Shared letters are muted; the letters that actually set lough and louse apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

5 ch
lough
5 ch
louse

Spelling & Dictionary Insight

A purely visual mix-up. lough (/lɑx/) and louse (/laʊs/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 82557, 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/. louse is at rank #47,167, tagged as anoun, pronounced /laʊs/.

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 82557, this pair ranks #15,525 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of lough vs louse

Shared letters: lou. Private to "lough": gh. Private to "louse": es.

"lough" · 5 letters · shape CVVCC  ·  "louse" · 5 letters · shape CVVCV

Known mistypes of this pair

  • loughllough · loguh · louggh · loughh · louhg · luogh · olugh
  • lousellouse · losue · loues · lousse · luose · oluse

Frequency comparison

lough#35,390
louse#47,167

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "lough" and "louse" be used interchangeably?
No. They are said differently (/lɑx/ versus /laʊs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "lough" or "louse"?
"lough" is the more common of the two: it sits at frequency rank #35,390 in our English list, against #47,167 for "louse". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering lough vs louse

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 “lough” 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