Usability includes methods of measuring usability, such as needs analysis and the study of the principles behind an object's perceived efficiency or elegance.
Crowne Burial Vault. The burial vault is a waterproof container designed for earth burial. Made in America and constructed of high technology polymer, it is strong enough to withstand the weight of earth-moving and cemetery maintenance equipment.
Any burial chamber, particularly those underground. Family members had been buried in the vault for centuries. The secure room or rooms in or below a bank used to store currency and other valuables; similar rooms in other settings. The bank kept their money safe in a large vault. (gymnastics) A piece of apparatus used for performing jumps.