Something that is compulsory or required.

that you must do or have because of a rule

plural of compulsory

The state or quality of being compulsory.

(LGBT, feminism) The idea that heterosexuality can and should be adopted by individuals regardless of their own sexual orientation.

Alternative spelling of noncompulsory

(law, education) A period of time in a child's life during which the child must receive schooling as required by law.

(law, UK, Ireland, New Zealand) The power of a state to expropriate private land within its jurisdiction for public use.

plural of compulsory purchase order

(law, UK, Ireland) An order made, usually for the purchase of land required for a construction project.