後日: in the future, later, a later day, another day; after the occurrence of some event, etc

Short for ご馳走様 (go-chisō-sama).

various rumours

a millennium; a thousand years

the ninth day of the month / nine days

(literary) an alternate name

the seventh day of the month / seven days

(a duration of) one year / an unspecified year in the past

A solar year, the time it takes the Earth to complete one revolution of the Sun (between 365.24 and 365.26 days depending on the point of reference)

counter word for people, persons