N5
コーヒー、こーひー
Definition
coffee
N4
たまに
Definition
occasionally, once in a while
N3
せきたん、いしずみ
Definition
coal
N2
せっきん
Definition
getting closer, drawing nearer, approaching, being not much different, being near (age, skill, etc.), becoming close (i.e. friendly), becoming intimate
N1
ころ、ごろ
Definition
(approximate) time, around, about, toward, suitable time (or condition), time of year, season