a job (countable, regular work a person does for a company)
work (uncountable, aktivity, usually for money)

visited
attended
worked
about
of
after
of
by
in
say
talk
tell
say
talk
told
wage
salary
income
job; in
work;for
work; in
employee
employment
employer
white-collar
blue-collar
red-collar
do you work
are you working
have you been working