Synonyms for Occupation (same or very similar meaning)
WordNet sense 1 (the control of a country by military forces of a foreign power):
military control
WordNet sense 2 (the principal activity in your life that you do to earn money):
business, job, line, job, line of work
WordNet sense 3 (the act of occupying or taking possession of a building):
occupancy, moving in, taking possession
From the ODE community, based on WordNet
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