All hail, Macbeth, thou shalt be king hereafter!
Wouldst thou have that/ Which thou esteem'st the ornament of life,/ and live a coward in thine own esteem {Apex Answer}
A collection of items of the same type stored in a hidden or inaccessible place. It would be appropriate to use for something like “I have my own cache.” Like a collection stored in one place.
Cheung Chau is famous for its many temples, beaches and caves.
I believe it is evidence, source, information?