problem

UK: /ˈprɒbləm/ | US: /ˈprɑːbləm/

Definition
  1. n. a matter or situation regarded as unwelcome or harmful and needing to be dealt with

  2. n. a question proposed for solution or discussion

  3. n. (Mathematics) a proposition requiring the discovery of a quantity or construction

Structure
pro <forward>blem <throw>
Etymology

The word "problem" originates from Greek problēma (πρόβλημα), combining pro- ("forward") and ballein ("to throw"). It metaphorically describes an obstacle "thrown in one’s path," requiring resolution. Latin adopted it as problema, and Middle English later borrowed it via Old French probleme. The core idea of a "challenge to be solved" has remained consistent.

Examples
  1. The team worked together to solve the technical problem.

  2. She presented a problem to the class for discussion.

  3. Pollution is a major problem in urban areas.

  4. The math problem was too difficult for the students.

  5. His stubbornness became a problem in their relationship.