Englishfor English speakers
son
Noun
—
A son is a male child of someone.
I am his son.
of
Preposition
—
Made using.
It is a house of cards.
sister
Noun
—
Your sister is the daughter of your mother and father.
My parents have three children: me, my brother, and my sister.
—
A sister is a nurse in a hospital.
The Sister said that I must rest more.