Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
歯痛 はいた toothachebyouki
冷める さめる (1)to become cool (e.g. from a high temperature to room temperature), to come down (fever), (2)to cool down (interest), to abate, to subside, to dampen ichidan, jlpt3, verb, vintrans
石炭 せきたん coalkagaku
好機 こうき good opportunity, chancemix
流行る はやる (1)to be popular, to come into fashion, (2)to be prevalent, to spread widely (e.g. disease), to be endemic, (3)to flourish, to thrive godan, jlpt3, verb, vintrans