Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
灰色 はいいろ grey, gray, asheniro
水道 すいどう water works, water supplyjlpt4, leda1
書道 しょどう kaligrafieleda1
外国 がいこく foreign countryjlpt5, leda1, ryokou
学会 がっかい scientific society/academic meeting/academic conference/(P)gakkou