a hill near or on which a tower is built; spec. (with capital initials) the rising ground by the Tower of London.

The Capitoline Hill in Rome (see sense A. 1).

The Quirinal Hill in Rome.

With capital initial. The Palatine Hill in Rome; (also) the district of Rome built on the slopes of this hill.

Designating a range of hills (the Colli Euganei) southwest of Padua. Also (rare) absol. as n. plural, the Euganean hills.

Physical Geography. A steep-sided hill of roughly circular cross-section characteristic of karst topography, esp. in Cuba. Cf. hum, n.4