Open English Wordnet
Nouns
(n)occupation, business, job, line of work, linethe principal activity in your life that you do to earn money“he's not in my line of business”
(n)occupationany activity that occupies a person's attention“he missed the bell in his occupation with the computer game”
(n)occupation, occupancy, moving inthe act of occupying or taking possession of a building“occupation of a building without a certificate of occupancy is illegal”
(n)occupationthe period of time during which a place or position or nation is occupied“during the German occupation of Paris”