Meanings

necessary documents

essential amino acid

mandatory attribute

key word

required memory size

contextually required token

contextually required element

required entry (e.g. in online forms)

no mortal escapes death

surefire way to win

(minimum) system requirements

essential fatty acid

a virtuous family enjoys long prosperity

government rules on structure, staffing, etc. of local bodies (e.g. police force)

mandatory requirements (e.g. qualifications, administrative structures, etc.)

circular error probability (measure of missile accuracy)

definiteness

must-listen

must-have

must-eat