simple past tense and past participle of require
"The manager required all employees to submit their reports by Friday, but he was required to present them personally to the board next week."
In plain English: To require means to need something so much that you cannot do without it.
"The new law requires all drivers to wear seatbelts."
required by rule
"in most schools physical education is compulsory"
"attendance is mandatory"
"required reading"
Necessary; obligatory; mandatory.
"The passport was required for everyone entering the country that day."
In plain English: Required means something you absolutely must do or have because it is necessary.
"The job posting lists a college degree as required for the position."
Usage: Use required to indicate that something must be done or possessed, often appearing before nouns as an adjective in phrases like "a required course." It is interchangeable with mandatory but sounds slightly less formal than compulsory when describing rules or laws.
Derived from Old French requerir, which comes from Latin requirere meaning "to seek back" or "demand." The term originally referred to the act of asking for something and later evolved to mean being necessary or obligatory.