'Promontory' definitions:

Definition of 'promontory'

noun

A natural elevation (especially a rocky one that juts out into the sea) [syn: promontory, headland, head, foreland]

From: GCIDE

Promontory \Prom"on*to*ry\, n.; pl. Promontories. [ L. promonturium, promunturium; pro before + mons, montis, mountain: cf. F. promontoire. See Mount, n.] [1913 Webster]
1. (Phys. Geog.) A high point of land or rock projecting into the sea beyond the line of coast; a headland; a high cape. [1913 Webster]
Like one that stands upon a promontory. --Shak. [1913 Webster]
2. (Anat.) A projecting part. Especially: (a) The projecting angle of the ventral side of the sacrum where it joins the last lumbar vertebra. (b) A prominence on the inner wall of the tympanum of the ear. [1913 Webster]

From: GCIDE

Doubling \Dou"bling\, n.
1. The act of one that doubles; a making double; reduplication; also, that which is doubled. [1913 Webster]
2. A turning and winding; as, the doubling of a hunted hare; shift; trick; artifice. --Dryden. [1913 Webster]
3. (Her.) The lining of the mantle borne about the shield or escutcheon. [1913 Webster]
4. The process of redistilling spirits, to improve the strength and flavor. [1913 Webster]
5. raising the stakes in a game, such as a card game or backgammon, by a factor of 2.
Syn: double. [WordNet 1.5]
Doubling a cape, promontory, etc. (Naut.), sailing around or passing beyond a cape, promontory, etc. [1913 Webster]