nouns
an authority who withdraws permission
is a type of (narrower)
(usually plural) persons who exercise (administrative) control over others
"the authorities have issued a curfew"
an individualist who withdraws from social interaction
is a type of (narrower)
a person who pursues independent thought or action
a drug addict who is discontinuing the use of narcotics
is a type of (narrower)
a narcotics addict
a contestant who withdraws from competition
is a type of (narrower)
a person who participates in competitions
a student who withdraws from the educational institution in which he or she was enrolled
is a type of (narrower)
a learner who is enrolled in an educational institution
a depositor who withdraws funds previously deposited
is a type of (narrower)
a person who has deposited money in a bank or similar institution