* "भाई" (bhaai) means brother
* "बहन" (bahan) means sister
It's important to note that "भाई-बहन" refers to siblings collectively, and not specifically a brother or sister.
Here are some other related words:
* बड़ा भाई (baraa bhaai) - elder brother
* छोटा भाई (chota bhaai) - younger brother
* बड़ी बहन (bari bahan) - elder sister
* छोटी बहन (chhoti bahan) - younger sister