n. a job in an organization; "he occupied a post in the treasury"

n. physical position in relation to the surroundings; "the sites are determined by highly specific sequences of nucleotides"

n. a condition or position in which you find yourself; "the unpleasant situation (or position) of having to choose between two evils"; "found herself in a very fortunate situation"

n. a complex or critical or unusual difficulty; "the dangerous situation developed suddenly"; "that's quite a situation"; "no human situation is simple"