at home

Sorry sir, I left my homework at home.

I feel at home around my girlfriend's family.

I can't believe it: she's 28 and still lives at home.

The team has a 6–2 record at home.

When a servant at a door says “Not at home,” this phrase means that the lady of the house is “Not at home to visitors.” This answer neither signifies nor implies—nor is it intended to—that Mrs. Jones is out of the house.