Pavement, Road Surface
noun, verbal noun
When you pave and attire something, you’ll end up with a pavement. Imagine the asphalt used in the paving of a street as its attire and this’ll make sense!
ほそう
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
この道路はまだ舗装されていない。
This highway still hasn’t been paved.