Listen:
Concise Oxford English Dictionary © 2008 Oxford University Press: problem /ˈprɒbləm/ ▶noun 2 Physics & Mathematics an inquiry starting from given conditions to investigate or demonstrate something. 3 (in chess) an arrangement of pieces in which the solver has to achieve a specified result. – origin ME : from OFr. probleme , via L. from Gk problēma , from proballein ‘put forth’, from pro ‘before’ + ballein ‘to throw’.
'
problem ' also found in these Oxford entries:
Forum discussions with the word(s) "problem" in the title: Look up "problem" at Merriam-Webster Look up "problem" at dictionary.com
In other languages: Spanish | French | Italian | Portuguese | German | Russian | Polish | Romanian | Czech | Greek | Turkish | Chinese | Japanese | Korean | Arabic