problem

Noun

• a source of difficulty
  • one trouble after another delayed the job
    
  • what's the problem?
    

• a question raised for consideration or solution
  • our homework consisted of ten problems to solve
    

• 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
    

Related words

• Synonyms: 
  trouble , job