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an Aladdin's cave

A place full of treasures. (In The Arabian Nights, Aladdin finds a magic lamp in a cave.) I know you think your garage is full of junk, but to an antiques collector like me, it's an Aladdin's cave!
See also: cave

man cave

A room or area of a house designated for a man to retreat from the rest of his family and relax or engage in hobbies. My husband is watching the football game in his man cave right now.
See also: cave, man

cave in

1. verb To collapse into a hollow area below, as of a physical structure or formation. We were able to get the kids out of the house before the roof caved in.
2. verb To collapse, faint, or die, as from over-exertion. I hardly remember the end of the marathon because I caved in as soon as I crossed the finish line.
3. verb To submit, concede, or yield (to someone or something); to surrender or acknowledge defeat. Under the threat of a strike, the management caved in and agreed to reinstate annual pay increases for all employees.
4. noun A collapse into a hollow area below, as of a physical structure or formation. When used as a noun, the phrase is usually hyphenated. The fear of every miner is a cave-in.
See also: cave

the roof caves in

The situation collapses; everything goes wrong. Typically used in the past tense. I was living paycheck to paycheck and getting by OK, but then the roof caved in. I lost my job, and then my car and my house.
See also: cave, roof

cave in

[for a roof or ceiling] to collapse. The roof of the mine caved in when no one was there. The tunnel caved in on the train.
See also: cave

cave in (to someone or something)

Fig. to give in to someone or something. Finally, the manager caved in to the customer's demands. I refuse to cave in under pressure from my opponent.
See also: cave

cave in

1. Fall in, collapse, as in The earthquake made the walls cave in. [Early 1700s]
2. Give in, admit defeat, as in The prosecutor's questions soon made the witness cave in. [Early 1800s]
3. Collapse, faint, or die from exhaustion, as in After a twenty-mile hike I caved in. [Mid-1800s]
See also: cave

an Aladdin's cave

a place full of valuable objects.
See also: cave

keep cave

act as lookout. school slang
Cave is a Latin word meaning ‘beware!’ Pronounced as one or two syllables, cave was the traditional warning uttered by a schoolchild to let others know that a teacher was approaching.
See also: cave, keep

an Aladdin’s ˈcave

a place full of valuable or interesting objects: He kept for his private pleasure an Aladdin’s cave of stolen masterpieces.This expression comes from a story in The Arabian Nights. Aladdin was trapped in a cave full of gold and jewels by a magician.
See also: cave

cave in

To give way; collapse: The sides of the snow fort caved in. The mine shaft caved in on a group of miners, but fortunately they were rescued.
See also: cave
References in classic literature ?
No, especially if we have a tell-tale in the cave and disconnect the broken wire.
Now stranger, if you have strength, come to the mouth of the cave and look out, for the moon is bright.
When I had done this I hid it under dung, which was lying about all over the cave, and told the men to cast lots which of them should venture along with myself to lift it and bore it into the monster's eye while he was asleep.
No sound, no heat, no movement came from it, but still the great luminous curtain glowed before us, silvering all the cave and turning the sand to powdered jewels, until as we drew closer it discovered a circular edge.
Knowing that attack from the tree was now improbable, we determined to explore the cave, which we had every reason to believe was but a continuation of the path we had already traversed, leading the gods alone knew where, but quite evidently away from this valley of grim ferocity.
When Woola had left us Thuvan Dihn and I, hiding in the seventh cave, discussed and discarded many plans for crossing the eighth chamber.
Their hearts beat a little faster than usual as they again approached the Giant's cave, this time moving swiftly forward.
As I backed along the ledge I soon was past the mouth of the cave, where I no longer could see those fearful flaming eyes, but an instant later I caught sight of the fiendish face of a Sagoth as it warily advanced beyond the cliff's turn on the far side of the cave's mouth.
I found the valley without difficulty and led my guard directly to the cave.
With her means of protection gone, Lys was now at the mercy of the hatchet-man; nor was it many hours before he had caught her at the base of the cliff and seized her; but as he bore her triumphantly aloft toward his cave, she had managed to break loose and escape him.
We found a tiny cave in the rock bank, so hidden away that only chance could direct a beast of prey to it, and after we had eaten of the deer-meat and some fruit which Ajor gathered, we crawled into the little hole, and with sticks and stones which I had gathered for the purpose I erected a strong barricade inside the entrance.
And right gingerly he crept out or his cave and descended to the ground.
This was the mouth of the cave and the source of light.
So vast was the dome that there was a large space in the middle of the cave, in front of all these houses, where the creatures might congregate as in a great hall.
A BULL, escaping from a Lion, hid in a cave which some shepherds had recently occupied.