assign vs reassign

assign and reassign both are verbs.

Word	Noun	Adjective	Verb	Adverb
assign	No	No	Yes	No
reassign	No	No	Yes	No

As verbs, reassign is a hyponym of assign; that is, reassign is a word with a more specific, narrower meaning than assign:

assign: give an assignment to (a person) to a post, or assign a task to (a person)
reassign: transfer somebody to a different position or location of work

assign (verb)	reassign (verb)
select something or someone for a specific purpose	transfer somebody to a different position or location of work
attribute or credit to
decide as to where something belongs in a scheme
attribute or give
transfer one's right to
give out
make undue claims to having
give an assignment to (a person) to a post, or assign a task to (a person)