As nouns the difference between koban and kowan
is that koban is an oval gold coin in the edo period of feudal japan or koban can be a small community police office or a police box, especially one in japan while kowan is .
koban
English
Etymology 1
(etyl)
Noun
(
en noun)
An oval gold coin in the Edo period of feudal Japan.
Etymology 2
(etyl)
Noun
(
en noun)
A small community police office or a police box, especially one in Japan.
----
==Serbo-Croatian==
Adjective
fatal, baleful, ominous
tragic, unlucky
Declension
(sh-adj-defindef)