yhdeksän

Yhdeksän is the Finnish word for the cardinal number nine. It is used in counting, to express quantity, and in dates and measurements. The ordinal form is yhdeksäs, as in yhdeksäs päivä meaning the ninth day.

In Finnish grammar, yhdeksän functions as a numeral that modifies a noun. When counting objects, the noun typically appears in the partitive singular after numerals from two to nine, for example yhdeksän koiraa, meaning nine dogs.

Mathematically, nine is a positive integer, a perfect square (3 squared), and a composite number. It can be represented in different numeral systems: in Roman numerals it is IX, and in binary it is 1001. In everyday usage, it appears in various expressions and calculations as with other single-digit numbers.