pääsanan
Pääsana is a Finnish linguistic term meaning the base form of a word that dictionaries and word lists use as the entry key. The possessive or genitive form of this noun is pääsanan, which appears in phrases such as pääsanan taivutus or pääsanan identifiointi. The term derives from suomalaisesta sanastosta: pää meaning head and sana meaning word, together describing the “headword” or main entry form.
In lexicography and language learning, pääsana refers to the form of a word that is used to
Usage and examples illustrate its function. The headword pääsana "kissa" yields inflected forms such as "kissan"
Historically and in modern dictionaries, the concept of pääsana underpins indexing, pronunciation guides, grammatical information, and