Definition of "hillier" [hillier]

• Comparative form of hilly: more hilly (adjective)

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• "For relatively flat cities, a three-speed bike will do; those in hillier terrains may want to opt for six."
• "“I really like the hillier races and I am excited to have a chance to show this team my qualities in that type of terrain”."
• "It's no secret I'd like a hillier course but it should still make for an amazing raceAlistair BrownleeDid you know?"