Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
三角形の内角のはπである。 sankakukei no naikaku noha π dearu. The sum of inner angles of a triangle is π.math
短刀 tantou krátký meč (do 30cm), dýkaleda1, sensou
少年 šounen boy (young)hito, leda1
山川 sansen; jamakawa; jamagawa mountains and rivers; mountains and rivers; mountain riversmix
非公式 hikoušiki informalmix