noun
Refers to a small, narrow path or lane, often in a natural or residential setting. Can be used literally or figuratively.
森の中の小道を散歩した。
I took a walk along the path in the forest.
この小道をまっすぐ行くと、駅に出ます。
If you go straight down this lane, you'll come out at the station.
Compound of 小 (small) and 道 (road, path). The reading こみち is a straightforward combination of the kun'yomi readings of the two kanji.