In obsolete|lang=en terms the difference between assistant and crew
is that
assistant is (obsolete) someone who is present; a bystander, a witness while
crew is (obsolete) any company of people; an assemblage; a throng.
In british|lang=en terms the difference between assistant and crew
is that
assistant is (british) sales assistant while
crew is (british) (
crow) to have made the characteristic sound of a rooster.
As nouns the difference between assistant and crew
is that
assistant is (obsolete) someone who is present; a bystander, a witness while
crew is a group of people (often staff) manning and operating a large facility or piece of equipment such as a factory, ship, boat, or airplane or
crew can be (british|dialectal) a pen for livestock such as chickens or pigs or
crew can be the manx shearwater.
As an adjective assistant
is having a subordinate or auxiliary position.
As a verb crew is
to be a member of a vessel's crew or
crew can be (british) (
crow) to have made the characteristic sound of a rooster.