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the principal activity (job, work or calling) that earns money (regular wage or salary) for a person (see employment, profession, business, List of occupations)

the periods of time following a nation's territory invasion by controlling enemy troops (see Military occupation)

the act of settling onto an uninhabited tract of land, see Annexation and Terra nullius

the temporary forceful occupation of a (typically governmental) symbolic building or site, as a sign of protest (see occupation (protest))

the act of settling into of a building (see ownership)

any activity that occupies an important portion of a person's attention (see fan)