Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
えん circlemath
入る はいる to enter, to join, to containgodan, jlpt5, verb
~本 ~ほん counter for long, cylindrical objectscounter, jlpt5
男の子 おとこのこ boyhito, jlpt5
工学 こうがく engineeringmix