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Words starting with u

Word Definition
U 1. the twenty-first letter of the English alphabet, is a cursive form of the letter V, with which it was formerly used interchangeably, both letters being then used both as vowels and consonants. U and V are now, however, differentiated, U being used only as a vowel or semivowel, and V only as a consonant. The true primary vowel sound of U, in Anglo-Saxon, was the sound which it still retains in most of the languages of Europe, that of long oo, as in tool, and short oo, as in wood, answering to the French ou in tour. Etymologically U is most closely related to o, y (vowel), w, and v; as in two, duet, dyad, twice; top, tuft; sop, sup; auspice, aviary. See V, also O and Y.
2. (adj.) (chiefly British) of or appropriate to the upper classes especially in language use
3. (n.) the 21st letter of the Roman alphabet
4. (n.) a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
5. (n.) a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine
U-boat 1. (n.) a submersible warship usually armed with torpedoes
u-drive 1. (n.) a rented car
U-shaped 1. (adj.) shaped in the form of the letter U
u-turn 1. (n.) complete reversal of direction of travel
U. S. Air Force 1. (n.) the airforce of the United States of America; the agency that defends the United States through control and exploitation of air and space
U. S. Army 1. (n.) the army of the United States of America; the agency that organizes and trains soldiers for land warfare
U. S. Army Special Forces 1. (n.) a division of the United States Army that is specially trained for guerilla fighting
U. S. Coast Guard 1. (n.) an agency of the Department of Transportation responsible for patrolling shores and facilitating nautical commerce
U. S. Code 1. (n.) a consolidation and codification by subject matter of the general and permanent laws of the United States; is prepared and published by a unit of the United States House of Representatives
U.K. 1. (n.) a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom
U.S. 1. (n.) the executive and legislative and judicial branches of the federal government of the United States
2. (n.) North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
U.S. Army Criminal Investigation Laboratory 1. (n.) a defense laboratory of the Criminal Investigation Command; the United States Army's primary forensic laboratory in support of criminal intelligence
U.S. Congress 1. (n.) the legislature of the United States government
U.S. Constitution 1. (n.) the constitution written at the Constitutional Convention in Philadelphia in 1787 and subsequently ratified by the original thirteen states
U.S. government 1. (n.) the executive and legislative and judicial branches of the federal government of the United States
U.S. House 1. (n.) the lower legislative house of the United States Congress
U.S. House of Representatives 1. (n.) the lower legislative house of the United States Congress
U.S. Mint 1. (n.) the mint that manufactures and distributes United States coins for circulation through Federal Reserve Banks; processes gold and silver bullion
U.S. National Library of Medicine 1. (n.) the world's largest medical library
U.S. Senate 1. (n.) the upper house of the United States Congress
U.S. waters 1. (n.) territorial waters included within a distance of 12 nautical miles of the coasts of the United States and its territories
U.S.A. 1. (n.) North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
U308 1. (n.) an impure mixture of uranium oxides obtained during the processing of uranium ore
uakari 1. (n.) Same as Ouakari.
2. (n.) medium-sized tree-dwelling monkey of the Amazon basin; only New World monkey with a short tail
Ubermensch 1. (n.) a person with great powers and abilities
uberous 1. (adj.) Fruitful; copious; abundant; plentiful.
uberty 1. (n.) Fruitfulness; copiousness; abundance; plenty.
ubeth 1. (adv.) Alternative form of Unethes
ubication 1. (n.) Alternative form of Ubiety