This is the 1601st most frequent Japanese word.
徒歩
On foot.
The word '徒歩' (toho) is used here to indicate the manner of transportation, which is by walking.
私は毎日学校へ徒歩で通っています。
I walk to school every day.
'徒歩' (toho) specifies walking as the method to describe the duration needed to reach the museum.
この駅から博物館まで徒歩10分です。
It is a 10-minute walk from this station to the museum.
In this sentence, '徒歩' (toho) is used as a general noun meaning walking to describe the activity as beneficial exercise.