indicates possessive
Noun 1 +
The particle
Possession
Indicates that the first noun owns or possesses the second noun.
私
My book
先生
The teacher's car
Location or Origin
Indicates where the second noun is located or where it originates from.
日本
A Japanese book (A book of Japan)
机
The cat under the table
Attribute or Category
Indicates the specific type, category, or field of the second noun.
日本語
A Japanese language teacher
数学
A math student
In casual speech,