erstevserstenWhat's the difference?

Quick tell: erste is a num, ersten is an adjective, so they fill different roles in a sentence.

Which to use

“erste” is a num and “ersten” is an adjective - they look or sound alike but fill different roles in a sentence.

#250
“erste” frequency rank
#160
“ersten” frequency rank
410
confusion score

Side-by-Side Comparison

Feature erste ersten
Definition (zeitlich oder örtlich oder in einer anderen Reihenfolge) an vorderster Stelle sich befindend, dem zweiten vorangehend Genitiv Singular Maskulinum der starken Flexion des Positivs des Adjektivs erste

Where the eye mixes erste and ersten

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

5 ch
erste
6 ch
ersten

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: erste is [ˈeːɐ̯stə] while ersten is [ˈeːɐ̯stn̩]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “erste” sits inside “ersten”, and the parts of speech differ too (num vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 410, derived from the frequency rank of both members and their visual similarity.

erste is recorded at frequency rank #250, classified as anum, pronounced [ˈeːɐ̯stə]. ersten is at rank #160, tagged as anadj, pronounced [ˈeːɐ̯stn̩].

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 410, this pair ranks #2,005,895 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of erste vs ersten

Shared letters: erst. Private to "erste": -. Private to "ersten": n.

"erste" · 5 letters · shape VCCCV  ·  "ersten" · 6 letters · shape VCCCVC

Known mistypes of this pair

  • ersteerrste · erset · ersste · erstte · ertse · esrte
  • erstenerrsten · ersetn · erssten · erstenn · erstne · erstten · ertsen · esrten

Frequently Asked Questions

Can "erste" and "ersten" be used interchangeably?
No - they are not even the same part of speech. "erste" is a num and "ersten" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "erste" or "ersten"?
"ersten" is the more common of the two: it sits at frequency rank #160 in our German list, against #250 for "erste". 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