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Lei

German, noun/laɪ̯/

Lei is spelled L-E-I (3 letters) and appears 1.9 times per million words in written German, the 25,497th most frequent German word form (wordfreq, 2021 data). Lei is a German feminine noun meaning “a rock, mostly in the Rhenish Massif, typically of slate” (English Wiktionary, September 2026). It is also a plural of Leu (Romanian currency). The German Wiktionary defines it as “der Schiefer”.

What does Lei mean in English?

noun

  1. 1

    femininea rock, mostly in the Rhenish Massif, typically of slate

  2. 2

    feminineobsoletesynonym of Schiefer (“slate”)

noun

  1. 1

    plural of Leu (Romanian currency)

suffix

as -lei
  1. 1

    Suffix added to numerals and pronouns to create determiners/pronouns indicating variety

Source: English Wiktionary, German section, dump of September 2, 2026 (CC BY-SA 4.0).

How German dictionaries define it

noun: 1. der Schiefer 2. der Fels, die Klippe

suffix: 1. Suffix zur Bildung von bestimmten beziehungsweise unbestimmten Gattungszahlwörtern

The definition in the German Wiktionary, in German.

Source: German Wiktionary, dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.

Forms of Lei

  • Leien plural
  • Lay alternative
  • Ley alternative
  • Leie alternative

Source: English Wiktionary and German Wiktionary (dumps of September 2, 2026 and September 1, 2026).

How do you pronounce Lei?

  • /laɪ̯/
  • /ˈleːi/
  • /lɛɪ̯/

Sources: English Wiktionary, German Wiktionary (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.

How common is Lei in German?

Lei appears 1.9 times per million words in written German.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

What to look up after Lei