5vuotinen
5vuotinen is a Finnish compound adjective used to describe something that lasts five years or has a duration of five years. In standard Finnish it is usually written as viidenvuotinen when the number is expressed as a word; when digits are used, the form 5-vuotinen with a hyphen is common. The term does not refer to age; for people, five years of age is described as viisivuotias.
Formation and usage: The word is formed from viisi in the genitive viiden and the suffix vuotinen,
Orthographic notes: When using digits, it is common to hyphenate the numeral, producing 5-vuotinen. With spelled
See also: The related expressions viiden vuoden mittainen and other numeral-based descriptors, which convey similar meaning