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Glossary · Nouns · U

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TermTypeDefinitionClassificationsUpdated
usernounAn individual or a process (subject) acting on behalf of the individual that accesses a cryptographic module in order to obtain cryptographic services.IdentityMay 9, 2026
user accessnounMWEThe ability of an end-user to obtain, examine, or retrieve data or a file.CapabilityMay 12, 2026
user access privilegenounMWEAn identified entitlement that an end-user has to a particular system resource, such as a file folder, the use of certain system commands, or an amount of storage.CapabilityMay 9, 2026
user access reviewnounMWEA process that an organization implements to actively monitor and verify the appropriateness of a users' access to systems and applications based on an understanding of the minimum necessary for users to perform or support business activities or functions. The responsibility for granting access and performing periodic verification of the appropriateness of that access rests with the system and/or business owner of the system or application.ProcessRegulatedMay 9, 2026
user accountnounMWEInformation that tells a computer which files and folders to access for a specific user, which personal preferences to have in place, and what can be accessed by the user.IdentityRegulatedMay 12, 2026
User account activitynounMWEAll events and processes executed including logons and logouts associated with a system user account.IdentityRegulatedMay 12, 2026
User Account ManagementnounMWEInvolves 1) the process of requesting, establishing, issuing, and closing user accounts; 2) tracking users and their respective access authorizations; and 3) managing these functions.ProcessMay 12, 2026
User Contingency PlannounMWEUser contingency plan is the alternative methods of continuing business operations if IT systems are unavailable.ProcessInternalMay 12, 2026
User Datagram ProtocolnounMWEA connectionless Internet protocol that is designed for network efficiency and speed at the expense of reliability Scope Note: A data request by the client is served by sending packets without testing to verify whether they actually arrive at the destination, not whether they were corrupted in transit. It is up to the application to determine these factors and request retransmissions.NetworkMay 9, 2026
User IDnounMWEUnique symbol or character string used by an information system to identify a specific user.IdentityRegulatedPIIMay 12, 2026
User IdentificationnounMWEThe process, control, or information by which a user identifies himself or herself to the system as a valid user (as opposed to authentication).ProcessRegulatedPIIMay 12, 2026
User InitializationnounMWEA function in the life cycle of keying material; the process whereby a user initializes its cryptographic application (e.g., installing and initializing software and hardware).ProcessRegulatedCUIMay 9, 2026
User InterfacenounMWE(computer science) a program that controls a display for the user (usually on a computer monitor) and that allows the user to interact with the systemverifiedMay 18, 2026
User interface impersonationnounMWECan be a pop-up ad that impersonates a system dialog, an ad that impersonates a system warning, or an ad that impersonates an application user interface in a mobile device.ThreatMay 12, 2026
user manualnounMWEA user guide or user's guide, also commonly known as a manual, is a technical communication document intended to give assistance to people using a particular system.ArtifactMay 12, 2026
User modenounMWEUsed for the execution of normal system activitiesSystemMay 9, 2026
User Partnership ProgramnounMWEPartnership between the NSA and a U.S. government agency to facilitate development of secure information system equipment incorporating NSA-approved cryptography. The result of this program is the authorization of the product or system to safeguard national security information in the user’s specific application.ProcessRegulatedCUIMay 9, 2026
User provisioningnounMWEA process to create, modify, disable and delete user accounts and their profiles across IT infrastructure and business applicationsProcessMay 9, 2026
User RegistrationnounMWEA function in the life cycle of keying material; a process whereby an entity becomes a member of a security domain.ProcessMay 9, 2026
User RepresentativenounMWEIndividual authorized by an organization to order COMSEC keying material and interface with the keying system, provide information to key users, and ensure the correct type of key is ordered.RoleRegulatedCUIMay 9, 2026
User Representative for Risk ManagementnounMWEThe person that defines the system’s operational and functional requirements, and who is responsible for ensuring that user operational interests are met throughout the systems authorization process.RoleMay 9, 2026
User-Centered DesignnounMWEApproach to system design and development that aims to make interactive systems more usable by focusing on the use of the system; applying human factors, ergonomics and usability knowledge and techniques.FrameworkMay 18, 2026
Usherettenouna female usherverifiedMay 18, 2026
Ushering innounMWEthe introduction of something newverifiedMay 18, 2026
Usingnounan act that exploits or victimizes someone (treats them unfairly)verifiedMay 18, 2026
Using UpnounMWEthe act of consuming somethingverifiedMay 18, 2026
Usualnessnouncommonness by virtue of not being unusualverifiedMay 18, 2026
Usufructnouna legal right to use and derive profit from property belonging to someone else provided that the property itself is not injured in any wayverifiedMay 18, 2026
Usurernounsomeone who lends money at excessive rates of interestverifiedMay 18, 2026
Usurpationnounwrongfully seizing and holding (an office or powers) by force (especially the seizure of a throne or supreme authority)verifiedMay 18, 2026
Usurpernounone who wrongfully or illegally seizes and holds the place of anotherverifiedMay 18, 2026
Usurynounthe act of lending money at an exorbitant rate of interestverifiedMay 18, 2026
Utnounthe syllable naming the first (tonic) note of any major scale in solmizationverifiedMay 18, 2026
Utahraptornounlarge (20-ft) and swift carnivorous dinosaur having an upright slashing claw 15 inches long on each hind footverifiedMay 18, 2026
Utensilnounan implement for practical use (especially in a household)verifiedMay 18, 2026
Uterine ArterynounMWEa branch of the internal iliac artery that supplies the uterus and the upper part of the vaginaverifiedMay 18, 2026
Uterine CavitynounMWEthe space inside the uterus between the cervical canal and the Fallopian tubesverifiedMay 18, 2026
Uterine CervixnounMWEnecklike opening to the uterusverifiedMay 18, 2026
Uterine ContractionnounMWEa rhythmic tightening in labor of the upper uterine musculature that contracts the size of the uterus and pushes the fetus toward the birth canalverifiedMay 18, 2026
Uterine TubenounMWEeither of a pair of tubes conducting the egg from the ovary to the uterusverifiedMay 18, 2026
Uterine VeinnounMWEone of two veins on each side that arise from the uterine plexus and empty into the internal iliac veinverifiedMay 18, 2026
Uterusnouna hollow muscular organ in the pelvic cavity of femalesverifiedMay 18, 2026
Utilisationnounthe act of usingverifiedMay 18, 2026
Utilisernounsomeone who puts to good useverifiedMay 18, 2026
Utilitarianismnoundoctrine that the useful is the goodverifiedMay 18, 2026
UtilitynounA program used to configure or maintain systems, or to make changes to stored or transmitted data.SystemMay 9, 2026
Utility BondnounMWEa bond issued to finance the construction of public utility servicesverifiedMay 18, 2026
Utility MannounMWEa baseball player valued for the ability to play at several positionsverifiedMay 18, 2026
Utility ProgramnounMWE(computer science) a program designed for general support of the processes of a computerverifiedMay 18, 2026
Utility Revenue BondnounMWEa bond issued to finance the construction of public utility servicesverifiedMay 18, 2026
Utility RoutinenounMWEa routine that can be used as neededverifiedMay 18, 2026
Utilizationnounthe state of having been made use ofverifiedMay 18, 2026
Utilizernounsomeone who puts to good useverifiedMay 18, 2026
Utopianouna work of fiction describing a utopiaverifiedMay 18, 2026
Utopian SocialismnounMWEsocialism achieved by voluntary sacrificeverifiedMay 18, 2026
Utriculusnouna small pouch into which the semicircular canals openverifiedMay 18, 2026
Utterancenounthe use of uttered sounds for auditory communicationverifiedMay 18, 2026
Utterernounsomeone who circulates forged banknotes or counterfeit coinsverifiedMay 18, 2026
Utternessnounthe quality of being complete or utter or extremeverifiedMay 18, 2026
Uvnounradiation lying in the ultraviolet rangeverifiedMay 18, 2026
Uveanounthe part of the eye that contains the iris and ciliary body and choroidverifiedMay 18, 2026
Uveitisnouninflammation of the uvea of the eyeverifiedMay 18, 2026
Uveoscleral PathwaynounMWEa tubule that drains excess aqueous humorverifiedMay 18, 2026
Uvulanouna small pendant fleshy lobe at the back of the soft palateverifiedMay 18, 2026
Uvulitisnouninflammation of the uvulaverifiedMay 18, 2026
Uvulopalatopharyngoplastynounsurgical resection of unnecessary palatal and oropharyngeal tissue to open the airwayverifiedMay 18, 2026
Ux.noun(legal terminology) the Latin word for wifeverifiedMay 18, 2026
Uxornoun(legal terminology) the Latin word for wifeverifiedMay 18, 2026
Uxoricidenounthe murder of a wife by her husbandverifiedMay 18, 2026
Uxoriousnessnounfoolish fondness for or excessive submissiveness to one's wifeverifiedMay 18, 2026