Japanese edit

For pronunciation and definitions of こうねん – see the following entries.
光年
[noun] (astronomy) a light year
[counter] (astronomy) light year
後年
[noun] later years, afterwards, years to come
荒年
[noun] poor year; famine year
(This term, こうねん, is the hiragana spelling of the above terms.)

(The following entries are uncreated: 行年, 高年.)