lachvslassWhich spelling fits?

Quick tell: lach is a verb, lass is an adjective, so they fill different roles in a sentence.

Which to use

“lach” is a verb and “lass” is an adjective - they look or sound alike but fill different roles in a sentence.

#13,884
“lach” frequency rank
#863
“lass” frequency rank
14747
confusion score

Side-by-Side Comparison

Feature lach lass
Definition 2. Person Singular Imperativ Präsens Aktiv des Verbs lachen keine Energie habend

Where the eye mixes lach and lass

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

4 ch
lach
4 ch
lass

Visual trap between lach and lass

These two trip readers on the page rather than in the ear: lach is [lax] while lass is [las]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 14747, derived from the frequency rank of both members and their visual similarity.

lach is recorded at frequency rank #13,884, classified as averb, pronounced [lax]. lass is at rank #863, tagged as anadj, pronounced [las].

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 14747, this pair ranks #1,949,050 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of lach vs lass

Shared letters: al. Private to "lach": ch. Private to "lass": s.

"lach" · 4 letters · shape CVCC  ·  "lass" · 4 letters · shape CVCC

Known mistypes of this pair

  • lachalch · lacch · lachh · lahc · lcah · llach
  • lassalss · laß · llass · lsas

Frequently Asked Questions

Is swapping "lach" for "lass" ever safe?
No - they are not even the same part of speech. "lach" is a verb and "lass" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "lach" or "lass" show up more?
"lass" is the more common of the two: it sits at frequency rank #863 in our German list, against #13,884 for "lach". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "lach" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "lass" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,949,050 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "lach" and "lass" also get mixed up with nearby pairs, the highest-scored neighbour is "lach vs lame". 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 #1,949,050 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list