The ear is the organ of the sense of hearing in the auditory system. In humans, the ear consists of three structures —the inner ear, middle ear and outer ear. The inner ear, contains the apparatus necessary to change the vibrations transmitted from the outside world via the middle ear into signals passed along the vestibulocochlear nerve to the brain. The middle ear, includes the tympanic cavity and the ossicles.The outer ear consists of the auricle or pinna, and the ear canal. The ear not only detects sound but also aids in balance and body position. The  semicircular canals, the utricle and saccule of the inner ear also function as organs of the vestibular system responsible for balance.

EAR (Enterprise ARchive) is a file format used by Java EE for packaging one or more modules into a single archive so that the deployment of the various modules onto an application server happens simultaneously and coherently. It also contains XML files called deployment descriptors which describe how to deploy the modules.

The ear is the sense organ that detects sound. Ear may also refer to:

• Ear (botany), the top part of a grain plant, such as wheat
• Ear (mathematics), a type of polygon vertex
• Ear (rune), a part of the Anglo-Saxon Futhorc (runic alphabet)