längsvslangsamWhich spelling fits?

Quick tell: längs is a adverb, langsam is an adjective, so they fill different roles in a sentence.

Which to use

“längs” is an adverb and “langsam” is an adjective - they look or sound alike but fill different roles in a sentence.

#18,976
“längs” frequency rank
#751
“langsam” frequency rank
19727
confusion score

Side-by-Side Comparison

Feature längs langsam
Definition in der Längsachse eine niedrige Geschwindigkeit aufweisend, lange Zeit benötigend

Where the eye mixes längs and langsam

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
längs
7 ch
langsam

Visual trap between längs and langsam

These two trip readers on the page rather than in the ear: längs is [lɛŋs] while langsam is [ˈlaŋzaːm]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adverb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 19727, derived from the frequency rank of both members and their visual similarity.

längs is recorded at frequency rank #18,976, classified as anadv, pronounced [lɛŋs]. langsam is at rank #751, tagged as anadj, pronounced [ˈlaŋzaːm].

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 19727, this pair ranks #1,905,253 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of längs vs langsam

Shared letters: glns. Private to "längs": ä. Private to "langsam": am.

"längs" · 5 letters · shape CVCCC  ·  "langsam" · 7 letters · shape CVCCCVC

Known mistypes of this pair

  • langsamalngsam · lagnsam · langasm · langgsam · langsamm · langsma · langssam · lanngsam

Frequently Asked Questions

Can "längs" and "langsam" be used interchangeably?
No - they are not even the same part of speech. "längs" is an adverb and "langsam" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "längs" vs "langsam" - which ranks higher?
"langsam" is the more common of the two: it sits at frequency rank #751 in our German list, against #18,976 for "längs". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "längs" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "langsam" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,905,253 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "längs" and "langsam" also get mixed up with nearby pairs, the highest-scored neighbour is "längs vs largo". 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 #1,905,253 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