2 definitions found From WordNet (r) 2.0 [wn]: hilly adjective: having hills and crags; "hilly terrain" [syn: {cragged}, {craggy}, {mountainous}] From The Collaborative International Dictionary of English v.0.44 [gcide]: Hilly \Hill"y\, adjective 1. Abounding with hills; uneven in surface; as, a hilly country. ''Hilly steep.'' --Dryden. 2. Lofty; as, hilly empire. [Obs.] --Beau. & Fl.

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