Vocabulary consisting only from characters you are able to read
七日
nanoka
seven days, the seventh day of the monthjlpt5, toki
期間
kikan
period, term, intervaljlpt3
赤字
akadži
(1)deficit, (being in or going into) the red, (2)red text, red letters, (3)corrections (by a teacher or proofreader) written in red mix