nouns
a person who passes by casually or by chance
a person who passes as a member of a different ethnic or racial group
is a type of (narrower)
a human being
"there was too much for one person to do"
a student who passes an examination
is a type of (narrower)
a learner who is enrolled in an educational institution
is a type of (narrower)
someone who is tested (as by an intelligence test or an academic examination)
(football) a ball carrier who tries to gain ground by throwing a forward pass