#1 problem n. [job] a state of difficulty that needs to be resolved; "she and her husband are having problems"; "it is always a job to contact him"; "urban problems such as traffic congestion and smog". wn
#2 problem n. a question raised for consideration or solution; "our homework consisted of ten problems to solve". wn
#3 problem n. [trouble] a source of difficulty; "one trouble after another delayed the job"; "what's the problem?". wn
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