Vocabulary consisting only from characters you are able to read
角形
かくけい
(1)(N)-cornered polygon, incl. triangle, (2)Japanese rectangular envelope (opening on the short dimension; numbered 0-8, A3, A4, each with different sizes); mix
部活
ぶかつ
club activitiesmix
進学
しんがく
entering a higher-level school, esp. going on to universityjlpt3, suru
深海
しんかい
deep sea, depths of the sea, ocean depthsmix