Vocabulary consisting only from characters you are able to read
効く
きく
(1)to be effective, to show effect, (2)to do its work, to carry out its function well, (3)to be possible to use godan, jlpt3, verb, vintrans
自明
じめい
obvious, self-evident, trivial, axiomatic, self-explanatorymix
間近
まぢか
proximity, nearness, soon, nearbymix
都合
つごう
(1)circumstances/condition/convenience/(vs) (2)to arrange/to manage/(P) jlpt4, leda1