下行火车

1. down-train, train heading toward the ending point of its route

noun (common) (futsuumeishi)

下行

2. down-slope, downward going

nouns which may take the genitive case particle 'no' noun (common) (futsuumeishi)

下行(特指离开东京方向)

3. downbound (esp. away from Tokyo)

noun (common) (futsuumeishi) nouns which may take the genitive case particle 'no'

下游，下坡

4. downstream, downhill

noun, used as a prefix noun (common) (futsuumeishi)