Chinese · Family & People
弟弟
dìdi
Younger brother
Beginnernoun
Definition
A brother who is younger than you.
Example
我弟弟还在上学。
My younger brother is still in school.
Etymology
弟弟 (dìdi) combines '弟' (dì), meaning 'younger brother', with a diminutive suffix. The term evolves from the traditional importance placed on familial roles, especially in sibling dynamics.
How & Where It’s Used
弟弟 is often employed in casual conversations within families and among friends. Its usage is informal and prevalent across different Mandarin-speaking regions.