Problem
Synonyms: Difficulty, trouble, complication, mess, mix-up, hitch, stumbling block, hurdle, setback, catch-22, quandary, predicament, can of worms, Gordian knot, mishap, dilemma, prob, pickle, tight spot, how-do-you-do, gremlin, katzenjammer, nuisance, bother, source of trouble, thorn in one's side/flesh, drag, pain in the neck, issue, worry, difficult situation, muddle, snag, drawback, obstacle, hiccup, catch, vexed question, the rub, plight, hornets' nest, misfortune, misadventure, headache, hassle, fix, fly in the ointment, job, facer, nodus, source of difficulty, pest, irritant, vexation, pain, and fair cow.
Example Sentences
We need to solve this problem.
Communication can prevent many problems.
He faced a difficult problem today.
Let's discuss the main problem first.