This is the 6026th most frequent Turkish word.
yamaç
"Yamaç" means "slope" or "hillside" in English.
Here 'yamaç' is used to denote the geographical feature, specifically a slope or incline.
Yamaçta bir house var.
There is a house on the slope.
In this sentence, 'yamaç' is part of the term 'yamaç paraşütü,' referring to the activity of paragliding, which is often done from slopes.
Tatilde yamaç paraşütü denedik.
During the vacation, we tried paragliding.
Here 'yamaçlar' is used in plural form to describe the terrain category of slopes or inclined surfaces.