Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
土木 どぼく public worksmix
円い まるい round, circular, sphericaladj, jlpt5
山川 さんせん; やまかわ; やまがわ mountains and rivers; mountains and rivers; mountain riversmix
止める やめる to stopichidan, jlpt4, verb, vtrans
えん circlemath