5 Kanji
19.
Meaningbehind,back,later,
Onyomiゴ (go),コウ (kou),
Kunyomiのち (nochi),うし(ろ) (ushi(ro)),あと (ato),
e.g.:
午後 - Gogo - afternoon,
後悔 - Kōkai -
明後日 - Asatte - day after tomorrow,