Basic explanation:
1. In ancient times, it refers to children, but now it refers to sons: ~ females. ~ sun. ~ heir. ~ brothers (younger generation, young people).
2. Fruits and seeds of plants: vegetables. Melon ~ son. ~ true.
3. animal eggs: fish ~. Silkworm.
4. Young, young: ~ chicken. ~ livestock. ~ city.
5. Small and hard granular things: ~ bullet (Dan). Chess.
6. Relative to "mother": ~ gold (interest). ~ female buckle. ~ sound (consonant).
7. opposite address: male ~. Wife ~ scholar ~ (scholar) boat ~ (boatman) talent ~.