This meaning refers to gradually replacing breast milk or another milk source with solid food.
They began to wean the baby at six months.
The farmer weaned the calves in autumn.
Usually used with off or away from, this figurative meaning refers to slowly ending reliance on a habit, substance, system, or support.
The doctor helped him wean himself off the medication.
The company is trying to wean customers away from paper bills.
Usually used in the passive as weaned on, this meaning refers to growing up under or becoming familiar with a particular influence.
She was weaned on classical music.
The players were weaned on a tradition of discipline.