下り坂[kudarizaka] descent
下坂[shimosaka] downhill
急な坂[kyuunasaka] sudden drop
急坂[kyuuhan] steep slope
京坂[keihan] Kyoto-Osaka

坂道[sakamichi] hill road
上り坂[noborizaka] ascent
登坂[tohan] climbing a slope (hill)
女坂[onnazaka] the easier of two slopes

外国人登録[gaikokujintouroku] alien registration
外国人登録証明書[gaikokujintourokushoumeisho] certificate of alien registration
岩登り[iwanobori] rock climbing
駆け登る[kakenoboru] to run (up hill, stairs, etc.)
遠古登点[wokototen] marks to aid in reading Chinese classics

山登り[yamanobori] mountain climbing
住民登録[juumintouroku] resident registration
登り[nobori] ascent
登り下り[noboriori] rising and falling
登り口[noboriguchi] starting point for an ascent (mountain, stairs, etc.)