reinvsREXConfusable pair

Quick tell: rein is a adjective, REX is an abbrev, so they fill different roles in a sentence.

Which to use

“rein” is an adjective and “REX” is an abbrev - they look or sound alike but fill different roles in a sentence.

#605
“rein” frequency rank
#11,739
“REX” frequency rank
12344
confusion score

Side-by-Side Comparison

Feature rein REX
Definition ganz unverschmutzt Abkürzung für Deutscher Rentenkursindex

Letter map: rein vs REX

Shared letters muted; letters that set rein and REX apart highlighted. Shared run: 2.

4 ch
rein
3 ch
REX

Part-of-speech tell for rein / REX

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: rein is anadjective and REXanabbrev. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 12344, derived from the frequency rank of both members and their visual similarity.

rein is recorded at frequency rank #605, classified as anadj, pronounced [ʁaɪ̯n]. REX is at rank #11,739, tagged as anabbrev, pronounced […].

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 12344, this pair ranks #1,964,720 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of rein vs REX

Shared letters: er. Private to "rein": in. Private to "REX": x.

"rein" · 4 letters · shape CVVC  ·  "REX" · 3 letters · shape CVC

Known mistypes of this pair

  • reinreinn · reni · rien · rrein

Frequently Asked Questions

Is swapping "rein" for "REX" ever safe?
No - they are not even the same part of speech. "rein" is an adjective and "REX" an abbrev, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "rein" or "REX" show up more?
"rein" is the more common of the two: it sits at frequency rank #605 in our German list, against #11,739 for "REX". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pair "rein" vs "REX" is on the table, pick a follow-up below.

  • Full dictionary entry for "rein" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "REX" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,964,720 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "rein" and "REX" also get mixed up with nearby pairs, the highest-scored neighbour is "puzzles vs REX". 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 #1,964,720 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