Moved it to Learning Japanese. As long as you keep it to knowledge about Japanese suffixes, that's where it probably belongs.
A good place to start for you would be
Wikipedia.
Quote:
Japanese place names include names for geographic features, present and former administrative divisions, transportation facilities such as railroad stations, and historic sites in Japan. The article Japanese addressing system contains related information on postal addresses.
Each name usually ends with a suffix specific to a kind of place, as follows.
* -fu (府) for an "urban prefecture." There are two: Ōsaka-fu and
Kyōto-fu (Ōsaka Prefecture, Kyōto Prefecture, respectively)
* -gun (郡) for a district
* -shi (市) for a city
* -machi or -chō (町) for a town. Can be a local government or a non-governmental division of a larger city
* -mura or -son (村) for a village; e.g., Kamikuishiki-mura (Kamikuishiki). Can be a local government or a nongovernmental division of a larger city or town
* -ken (県) for a prefecture; e.g.,
Yamanashi-ken (Yamanashi Prefecture)
* -to (都) for Tōkyō-to (Tōkyō)
* -ku (区) for a ward of a city; e.g., Naka-ku in Hiroshima. Also for one of the 23 special wards of Tokyo; these are separate local governments nearly equivalent to cities
Some names contain a word indicating a direction:
[...]
Other names contain a word indicating the time when a settlement arose:
[...]
Geographic features figure prominently in Japanese place names. Some examples are
* hantō (半島) for a peninsula; e.g., Izu Hanto
* ishi (石) or iwa (岩) for a rock; e.g., Ishikawa Prefecture; Iwate Prefecture
* izumi (泉) for a spring; e.g., Hiraizumi, Iwate
* kaikyō (海峡) for a strait; e.g., Bungo kaikyō
* kawa or -gawa (川) for a river; e.g., Asakawa
* ko (湖) for a lake; e.g., Biwako
* nada (灘) for a sea
* oka (岡) for a hill; e.g., Fukuoka
* saki (崎) or misaki (岬) for a promontory
* san or -zan (山) for a mountain; e.g., Asosan
* sawa or -zawa (沢) for a stream; e.g., Mizusawa, Iwate
* shima or -jima (島) or tō for an island; e.g., Ie-shima, Iwo Jima,
Okinawa Honto
* tani or -dani (谷) for a valley
* wan (湾) for a headland or bay; e.g., Sagami-wan
* yama (山) for a mountain; e.g., Yamanashi Prefecture
Other words that express the natural world or agriculture often appear in place names:[...]