that must be done because of a law or a rule. synonym mandatory. It is compulsory for all motorcyclists to wear helmets.

There are five meanings listed in OED's entry for the word compulsory. See 'Meaning & use' for definitions, usage, and quotation evidence. compulsory has ...

an occasion when somebody is officially ordered to sell land or property to the government or other authority

​(formal) that you must do because of the law, rules, etc. synonym compulsory. The college authorities have now made these classes obligatory.

​in a way that must be done or accepted. Over 600 workers were made compulsorily redundant. opposite voluntarily · Questions about grammar and vocabulary?

7 дней назад · If something is compulsory, you must do it because of a rule or law. обязательный (для кого-либо).

mandatory adjective NAmE//ˈmændəˌtɔri// (formal) required by law synonym compulsory The offense carries a mandatory life sentence.

7 дней назад · If something is compulsory, you must do it because of a rule or law. Swimming was compulsory at my school. The law made wearing seat belts in cars compulsory.

​required by law synonym compulsory. The offence carries a mandatory life sentence. mandatory (for somebody) (to do something) It is mandatory for blood ...