This is the 391st most frequent Japanese word.
八
The Japanese word "八" means "eight."
八 is used to represent the numeral 8 in the context of time.
私は八時に起きます。
I wake up at 8 o'clock.
八つ is the traditional counting system word used for eight items.
この山には八つの頂上があります。
This mountain has eight summits.
八 denotes the numeral 8 as a shape or representation.