plural of natural user interface

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

The quality of being usable.

In a usable manner.

(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.

Archaic form of used.

simple past tense and past participle of use

(radio) The highest frequency that allows radio waves to be reflected off the ionosphere.

(formal) An email client or email reader.

plural of mail user agent