A 'down' train—one heading from the line's origin toward its terminus (often used for trains going away from Tokyo).
下り電車は朝のラッシュ時に混雑する。
Down trains are crowded during the morning rush hour.
次の下りは２０分後に到着します。
The next down train will arrive in 20 minutes.
遠方へ帰るので、下りの終電に間に合うように駅へ向かった。
I headed to the station to catch the last down train back to my hometown.
Descent; downward slope—refers to going downhill or a downward inclination.
自転車での下りはスピードが出るので気をつけてください。
Be careful on downhill stretches when cycling because you'll gain speed.
この道は上りより下りのほうが景色がいい。
The view on the way down this road is better than on the way up.
峠の下りで雨に降られてずぶ濡れになった。
It rained on the descent from the pass and I got soaked.
Downbound—moving away from a central point (often Tokyo) toward the provinces; used to indicate direction away from the capital.
東京から下り、地方都市をいくつか巡った。
I traveled down from Tokyo and visited several regional cities.
下り方面の列車は座席が空いていることが多い。
Downbound trains often have free seats.
Downstream or downhill; used as a prefix or noun to indicate downstream/downhill direction or movement.
川の下りを楽しむためにカヌーを借りた。
We rented canoes to enjoy a downstream ride on the river.
下りの斜面は雪で滑りやすくなっている。
The downhill slope is slippery because of the snow.
登山の下りは疲れていても注意が必要だ。
You need to be careful on the descent when hiking even if you're tired.