IPA: /ˈsaɪdˌhɪl/
KK: /ˈsaɪdˌhɪl/
The slope or side of a hill, often referring to the inclined ground.
The hikers decided to rest on the sidehill, enjoying the view of the valley below.
Sidehill → The word is formed from "side" (from Old English "side", meaning the lateral part of something) and "hill" (from Old English "hyll", meaning a raised area of land). The term "sidehill" refers to the slope or side of a hill.
Think of the 'side' of a 'hill' — that's what sidehill means, the slope or lateral part of a hill.
No commonly confused words.