Definition of foothill noun from the Oxford Advanced Learner's Dictionary

 

foothill

 noun
noun
BrE BrE//ˈfʊthɪl//
 
; NAmE NAmE//ˈfʊthɪl//
 
[usually plural] Other geographic regions, Mountains and valleys
 
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a hill or low mountain at the base of a higher mountain or range of mountains the foothills of the Himalayas Wordfinderaltitude, foothill, mountain, peak, precipice, ridge, slope, summit, valley, volcano See related entries: Other geographic regions, Mountains and valleys
See the Oxford Advanced American Dictionary entry: foothill