needed, necessary

need, necessity

apartment building (abbr. アパート)

(idiomatic) a less powerful person partners with a more powerful person, such as for practicing

rent; hire

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

unnecessary

needlessness

necessary evil

gold (Au) / money / metal / (shogi) short for 金将 (kinshō): the gold general (a shogi piece)