When someone sublets a place, they rent it to someone else because they are already renting it from someone.
Subletting can be a good way to share a place and save money, but it's important to follow the rules.
Examples:
She sublets her apartment to a friend while she's on vacation.
He can't sublet the house without asking the landlord first.
The landlord doesn't allow subletting.
The cat sublets the mouse hole to the dog when the cat is not home.
He sublets his room to his brother for a few months.
She sublets her parking space to her neighbor when she doesn't need it.