高３

こうさん

third year of high school; third-year high-school student

Also written 高三

Meanings

Noun
third year of high school; third-year high-school studentAbbreviation

Example sentences

俺おれは、高３こうさんだ。

I'm a senior.
僕ぼくは、高３こうさんだよ。

I'm a senior.
今いま、弟おとうとは小６しょうろくで姉あねは高３こうさんです。

Now, my younger brother is in 6th grade elementary and my older sister is in 3rd grade highschool.