Definition of "problem"

problem

/ˈpɹɒbləm/

noun
plural problems
1. A difficulty that has to be resolved or dealt with.
  Quotations
  “ […] it is not fair of you to bring against mankind double weapons ! Dangerous enough you are as woman alone, without bringing to your aid those gifts of mind suited to problems which men have been accustomed to arrogate to themselves.”
  1910, Emerson Hough, chapter I, in The Purchase Price: Or The Cause of Compromise, Indianapolis, Ind.: The Bobbs-Merrill Company
  The perfume industry is facing a major problem: maintaining constant levels of quality is crucial, but it is increasingly difficult to obtain a regular supply of all the necessary natural ingredients.
  2014 March 7, Nicole Vulser, “Perfume manufacturers must cope with the scarcity of precious supplies”, in The Guardian Weekly, volume 190, number 13, page 30
2. A question to be answered, schoolwork exercise.
3. A puzzling circumstance.
4. Objection.
5. Difficulty in accepting or understanding or refusal to accept or understand.
6. (climbing) A set of moves required to complete a climb.
adjective
comparative more problem, superlative most problem
1. (of a person or an animal) Difficult to train or guide; unruly.
2. Causing a problem; problematic; troublesome.
  Quotations
  It is more problem to my family than to me.
  2010, A. M. Aleksander, The Pride of the King‎