1 [uncountable and countable]
a piece of work that is given to someone as part of their job
on an assignment
She's gone to Italy on a special assignment.
He was killed while on assignment abroad.
a piece of work that a student is asked to do:
a history assignment
when people are given particular jobs to do
something such as a place to sit, piece of equipment etc that you are given to use for a particular purpose:
an aeroplane seat assignment