Fetching details from the dictionary...

to descend (e.g. a mountain); to go down; to come down
to alight (e.g. from bus); to get off; to disembark; to dismount
to step down; to retire; to give up; to quit; to fold
to be granted; to be issued; to be given
to form (of frost, dew, mist, etc.)
to be passed (from the body; e.g. of a roundworm)
山を下りるのに時間がかかった。
It took time to descend the mountain.
バスを下りて歩きました。
I got off the bus and walked.
階段を下りるときは気をつけて。
Be careful when going down the stairs.