kielitoimistosanakirja
Kielitoimistosanakirja is an authoritative Finnish-language dictionary compiled by the Kielitoimisto, the Finnish Language Office, which operates as part of the national language research institution Kotimaisten kielten tutkimuskeskus (Kotus). The dictionary documents standard Finnish usage and provides entries with definitions, spelling, grammatical information, and notes on common usage, style, and punctuation. It covers contemporary Finnish, including neologisms and loanwords, and explains preferred forms, typical collocations, and stylistic guidance for writers. The work is intended as a reference for editors, teachers, translators, writers, and language planners, and it is widely used in education, publishing, and media in Finland. Since its first edition in the mid-20th century, Kielitoimistosanakirja has been issued in multiple revised editions to reflect changes in the language. In addition to the traditional print edition, an online edition offers searchable entries and up-to-date guidance, keeping pace with living Finnish. The dictionary complements other standard language resources and plays a central role in normative Finnish language usage and language policy in Finland.