Origin: 1250–1300; ME
occupacioun < MF
occupation < L
occupātiōn- (s. of
occupātiō), equiv. to
occupāt(
us) (ptp. of
occupāre; see occupy ) +
-iōn- -ion 
Related forms: oc⋅cu⋅pa⋅tion⋅less, adjective
oc⋅cu⋅pa⋅tive, adjective
Synonyms:
1. employment, pursuit, craft, métier. Occupation, business, profession, trade refer to the activity to which one regularly devotes oneself, esp. one's regular work, or means of getting a living. Occupation is the general word: a pleasant or congenial occupation. Business esp. suggests a commercial or mercantile occupation: the printing business. Profession implies an occupation requiring special knowledge and training in some field of science or learning: the profession of teaching. Trade suggests an occupation involving manual training and skill: one of the building trades. 3. occupancy.