problem
Cross references:
1. mystery
1. prob.lem \'pra:b-l*m, 'pra:b-*m, -.lem\ n [ME probleme, fr. MF, fr. L
problema, fr. Gk proble-ma, li]t., something thrown forward, fr. proballein
to throw forward, fr. pro- forward + ballein to throw - more at PRO-, DEVIL
1a: a question raised for inquiry, consideration, or solution 1b: a
proposition in mathematics or physics stating something to be done 2a: an
intricate unsettled question 2b: a source of perplexity or vexation
2. problem aj 1: dealing with a problem of human conduct or social
relationship 2: difficult to deal with