examination, exam, test / quiz

question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

Short for 各駅停車 (kakueki teisha, “a train that stops at every station on the line”). / a state of stopping at every station on the line

necessity (quality or state of being necessary, unavoidable, or absolutely requisite)

unnecessary

needlessness

every quarter; all sides

necessary evil

graduation examination

practical test