(formal) mother animal

necessary evil

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

Arabian cowry, Mauritia arabica

unnecessary

needlessness

Alternative spelling of 子等 (“children”)

a surname

a child / Short for 子爵 (shishaku): the fourth rank of nobility in Meiji-postwar Japan, equivalent to a viscount / an honorific for a learned man, such as teacher or master

(archaic) second-person pronoun: you (of one's equals)