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luku.

number (abstract entity used to describe quantity; in mathematics, a concept such as a natural number, rational number or real number)

4 characters2 syllables approx.Suomi language

Meaning & usage

noun/ˈluku/[ˈluku]
  1. number (abstract entity used to describe quantity; in mathematics, a concept such as a natural number, rational number or real number)

  2. number, count, quantity (a number indicating how many of something there are)

  3. head count (the act of counting the number of persons present by having them call out numbers starting with one; also an interjection ordering a group to do so)

  4. chapter (one of the main section into which the text of a book is divided; one of the main part in a legal statute)

    Se on ihan oma lukunsa.
  5. text, writing, something that can be read

    dated
  6. reading

    in-compounds · often
    vain luku
    lukutaito
  7. reading, studying

    in-compounds · often
  8. chapter (division in a legal statute)

  9. number (the state of being singular, dual or plural)

  10. together with a year, used to indicate decade, century or sometimes even millennium; expressed by using the plural number in English

    1920-luvulla
    1600-luku
  11. spell (words, incantation)

Where this word comes from

From Proto-Finnic *luku. Equivalent to lukea (“to read, count”) + -u. The grammatical and mathematical senses are from the 19th century.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.