問題
Kana: もんだい
question; problem
Example sentence
この問題はとても難しいです。
このもんだいはとてもむずかしいです。
This problem is very difficult.
What 問題 means
問題 (もんだい) is a Japanese word meaning “question; problem”. It belongs to the Things & Objects topic and appears at Level 2, so it is one of the words worth learning early when you study Japanese.