hills

landscapes features are moderately elevated in comparison to surrounding areas

Hills

Raised mounds formed in a type of direct seeding. They are planted with several seeds per hill.
Found on http://www.pcmg-texas.org/glossary_gardening_landscaping.htm

Hills

Workouts where a runner runs up a hill fast and jogs down then runs up again; helps develop leg power and aerobic capacity
Found on http://www.howtobefit.com/glossary-of-running.htm

hills

[n] - hilly land
Found on http://www.webdictionary.co.uk/definition.php?query=hills
No exact match found