Kielitoimiston sanakirja

The definitive monolingual dictionary of standard Finnish, free from Kotus.

DictionariesFreeIntermediateAdvancedB1–C2

Open kielitoimistonsanakirja.fi ↗

What it actually is

Published by the Institute for the Languages of Finland, this is the authority on what a Finnish word means and how it inflects, with the inflection-class number on every headword — which is exactly the information you need to decline anything correctly. Switching to it from bilingual dictionaries is a milestone worth aiming for. Finnish-only definitions make it impractical much below B1.

What it covers

  • Vocabulary
  • Reading
  • Writing

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