(computing) command line interface

(computing) A user interface for a computer that is effectively invisible, or becomes invisible to its users with successive learned interactions.

plural of natural user interface

(fantasy) One who uses (or has skill with) magic.

(law, copyright law) A contract between the manufacturer or copyright holder, also commonly called the licensor, of an end product and a person, commonly called the end user, that specifies the licenses under which the end user may utilize the end product, subject to restrictions as specified in the contract or agreement.

Alternative form of usably

(nonstandard) comparative form of useless: more useless

(formal) An email client or email reader.

plural of mail user agent

One who or that which is used.