(computing) A copy of all the contents of a hard drive, used as a backup.

An image or metaphor that runs throughout and determines the form or nature of a literary work.

(countable, uncountable) Time that extends beyond memory or record. / (UK law, uncountable) Time before 6 July 1189.

A person who imitates or apes another.

Having no matter or substance. / So insubstantial as to be irrelevant.

(medicine) Protective resistance against disease. / (law) An exemption from specified duties, such as payments or services. / (law) An exemption from prosecution. / (religion) An exemption from penance.

a photoelectric device for intensifying faint astronomical images

Something or someone that is unique and individual. / A state where a product or idea cannot be copied, usually because of copyright rules.

(advertising) A consumer's perception of a brand.

The subjective inner picture of one's outward physical appearance.