locovsLouWhat's the difference?

Quick tell: loco is a adverb, Lou is a name, so they fill different roles in a sentence.

Which to use

“loco” is an adverb and “Lou” is a name - they look or sound alike but fill different roles in a sentence.

#22,141
“loco” frequency rank
#7,811
“Lou” frequency rank
29952
confusion score

Side-by-Side Comparison

Feature loco Lou
Definition A direction in written or printed music to be returning to the proper pitch after having played an octave higher or lower. A unisex given name.

Where the eye mixes loco and Lou

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

4 ch
loco
3 ch
Lou

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: loco is /ˈləʊ.kəʊ/ while Lou is /luː/. 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 (adverb vs name), which is usually the fastest check. Our composite confusion score for this pair is 29952, derived from the frequency rank of both members and their visual similarity.

loco is recorded at frequency rank #22,141, classified as anadv, pronounced /ˈləʊ.kəʊ/. Lou is at rank #7,811, tagged as aname, pronounced /luː/.

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 29952, this pair ranks #358,640 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of loco vs Lou

Shared letters: lo. Private to "loco": c. Private to "Lou": u.

"loco" · 4 letters · shape CVCV  ·  "Lou" · 3 letters · shape CVV

Known mistypes of this pair

  • locolcoo · lloco · locco · looc · olco

Frequently Asked Questions

Can "loco" and "Lou" be used interchangeably?
No - they are not even the same part of speech. "loco" is an adverb and "Lou" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "loco" or "Lou"?
"Lou" is the more common of the two: it sits at frequency rank #7,811 in our English list, against #22,141 for "loco". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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

Source: FrequencyWords open word-frequency list