laxvsLuxWhat's the difference?

Quick tell: lax is a adjective, Lux is a noun, so they fill different roles in a sentence.

Which to use

“lax” is an adjective and “Lux” is a noun - they look or sound alike but fill different roles in a sentence.

#43,323
“lax” frequency rank
#14,354
“Lux” frequency rank
57677
confusion score

Side-by-Side Comparison

Feature lax Lux
Definition nicht streng (in der Auslegung von Regeln) Einheit der Beleuchtungsstärke

Where the spellings diverge

Shared letters are muted; the letters that actually set lax and Lux apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

3 ch
lax
3 ch
Lux

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: lax is [laks] while Lux is [lʊks]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - a in “lax” becomes u in “Lux”, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 57677, derived from the frequency rank of both members and their visual similarity.

lax is recorded at frequency rank #43,323, classified as anadj, pronounced [laks]. Lux is at rank #14,354, tagged as anoun, pronounced [lʊks].

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 57677, this pair ranks #891,984 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of lax vs Lux

Shared letters: lx. Private to "lax": a. Private to "Lux": u.

"lax" · 3 letters · shape CVC  ·  "Lux" · 3 letters · shape CVC

Frequency comparison

lax#43,323
Lux#14,354

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "lax" and "Lux" be used interchangeably?
No - they are not even the same part of speech. "lax" is an adjective and "Lux" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "lax" or "Lux"?
"Lux" is the more common of the two: it sits at frequency rank #14,354 in our German list, against #43,323 for "lax". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering lax vs Lux

The fastest way to pick the right one every time.

  • Check the role first: if you need an adjective, it's “lax”; for a noun, it's “Lux”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “lax” 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 FrequencyWords open word-frequency list