key

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Related to salt: rock salt

key

adjective critical, crucial, decisive, fateful, influential, major, momentous, significant, weighty

key

(Passport), noun bar, pass, permit, ticket

key

(Solution), noun answer, method, resolution, way
See also: answer, basic, cardinal, catchword, central, clue, cornerstone, critical, crucial, essential, explanation, fundamental, gravamen, important, indispensable, main point, major, material, necessary, outstanding, primary, solution, strategic, tip

KEY. An instrument made for shutting and opening a lock.
     2. The keys of a house are considered as real estate, and descend to the heir with the inheritance. But see 5 Blackf. 417.
     3. When the keys of a warehouse are delivered to a purchaser of goods locked up there, with a view of effecting a delivery of such goods, the delivery is complete. The doctrine of the civil law is the same. Dig. lib. 41, t. 1, 1. 9, Sec. 6; and lib. 18, t. 1, 1. 74.

KEY, estates. A wharf at which to land goods from, or to load them in a vessel. This word is now generally spelled Quay, from the French, quai.

References in classic literature ?
I have several times alluded to the surface of the ground being incrusted with salt. This phenomenon is quite different from that of the salinas, and more extraordinary.
In both countries the salt-lakes occupy shallow depressions in the plains; in both the mud on the borders is black and fetid; beneath the crust of common salt, sulphate of soda or of magnesium occurs, imperfectly crystallized; and in both, the muddy sand is mixed with lentils of gypsum.
Captain Sublette, in one of his early expeditions across the mountains, is said to have sent four men in a skin canoe, to explore the lake, who professed to have navigated all round it; but to have suffered excessively from thirst, the water of the lake being extremely salt, and there being no fresh streams running into it.
In the spring, when the streams are swollen by rain and by the melting of the snows, the lake rises several feet above its ordinary level during the summer, it gradually subsides again, leaving a sparkling zone of the finest salt upon its shores.
His relatives, failing to understand that a question of sentiment was involved in this proceeding, appealed to hard facts, and reminded him that there were no salt mines in the neighborhood.
It proved to be a great aggravation of Hester's offenses, in the eyes of Hester's relatives, when it was discovered that she possessed a life-interest in Salt Patch, and an income of two hundred a year.
It was eight o'clock when the train passed through the defiles of the Humboldt Range, and half-past nine when it penetrated Utah, the region of the Great Salt Lake, the singular colony of the Mormons.
The red eastern sky, the northward blackness, the salt Dead Sea, the stony beach crawling with these foul, slow-stirring monsters, the uniform poisonous-looking green of the lichenous plants, the thin air that hurts one's lungs: all contributed to an appalling effect.
There were fringes of ice along the sea margin, with drifting masses further out; but the main expanse of that salt ocean, all bloody under the eternal sunset, was still unfrozen.
"Count," added Mercedes with a supplicating glance, "there is a beautiful Arabian custom, which makes eternal friends of those who have together eaten bread and salt under the same roof."
"I know it, madame," replied the count; "but we are in France, and not in Arabia, and in France eternal friendships are as rare as the custom of dividing bread and salt with one another."
A seaman labouring under an undue sense of security becomes at once worth hardly half his salt. Therefore, of all my chief officers, the one I trusted most was a man called B-.