Vocabulary consisting only from characters you are able to read
入口
いりぐち
entrance, gate, approach, mouthjlpt5
灰色
はいいろ
grey, gray, asheniro
防水
ぼうすい
waterproofing, making watertightsuru
自動
じどう
(1)automatic, self-motion, (2)(ling) (abbr) intransitive verb jlpt3, mix