Simple Compounds:
* Houseboat: A boat designed to be lived in.
* Housefly: A common fly found in and around houses.
* Houseplant: A plant grown indoors.
* Housewife: A woman who manages a household.
* Housekeeper: A person employed to clean and maintain a house.
* Housewarming: A party to celebrate moving into a new home.
More Complex Compounds:
* Greenhouse: A structure for growing plants, typically with glass walls.
* Playhouse: A small structure for children to play in.
* Doghouse: A small, outdoor shelter for a dog.
* Townhouse: A house that shares one or more walls with adjoining houses.
* Brickhouse: A house made of brick.
* Treehouse: A house built in a tree.
* Powderhouse: A structure used to store gunpowder.
* Greenhouse effect: The warming of the Earth's surface due to the trapping of heat by gases in the atmosphere.
Phrases:
* House of cards: A fragile or unstable situation.
* House arrest: Confinement to one's home as a form of punishment or restriction.
* House rules: Rules or regulations specific to a particular house or household.
This is not an exhaustive list, as there are many more possible compound words and phrases that could be created using "house".