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.)

アルファ線[arufasen] alpha rays
エックス線[ekkususen] X-ray
サイン曲線[sainkyokusen] sinusoid
スピード線[supiidosen] speed lines
緯線[isen] parallel

一次線輪[ichijisenrin] primary coil
一線[issen] line
一直線[icchokusen] straight line
一番線[ichibansen] track no. 1
一塁線[ichiruisen] first-base line

グリーン車[guriinsha] green car (1st class)
愛車[aisha] (one's) beloved car
医療車[iryousha] clinic car
井戸車[idoguruma] well pulley
１等車[ittousha] first-class carriage (coach)

一輪車[ichirinsha] unicycle
横車[yokoguruma] perverseness
下り列車[kudariressha] trains going away from the capital
下車[gesha] alighting (from train, bus, etc.)
火の車[hinokuruma] fiery chariot (which carries the souls of sinners into hell)