Explanation

Medal:  میڈل He won a gold medal in the 100 meters.

Meddle:  مداخلت My sister's always meddling in other people's affairs

Boy: لڑکا I saw a boy crossing the street.

Buy: خریدنے She went to the market to buy fresh vegetables

Follow: پیروی His dog follows him everywhere

Fellow: ساتھی they have been fellows since childhood

Dual: دوہری The training airplane has dual controls

Duel:  دو لوگوں کی جنگ: The two men fought a duel over the lady.

Differ:  فرق His ideas differ little from those of his father

Defer:  موخر کرنا  She'll defer her decision.