This is the 2320th most frequent Russian word.
медленно
Slowly.
The word 'медленно' is used as an adverb to describe the manner in which the subject walked.
Он медленно шёл по улице.
He walked slowly down the street.
Here 'медленно' sets the pace or progress of the achievement being described.
Медленно, но верно, он достиг своей цели.
Slowly but surely, he reached his goal.
In this sentence, 'медленно' is used to request the subject to perform the action in a slower manner for better understanding.