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5-letter words starting with u

  • u-235 — the radioactive uranium isotope having a mass number of 235, comprising 0.715 percent of natural uranium. When bombarded with neutrons it undergoes fission with the release of energy.
  • u-238 — the radioactive uranium isotope having a mass number 238, comprising 99.28 percent of natural uranium: used chiefly in nuclear reactors as a source of the fissionable isotope plutonium 239.
  • u-239 — the uranium isotope with a mass number 239. It is artificially produced by the neutron bombardment of uranium 238.
  • uber- — Uber combines with nouns and adjectives to form nouns and adjectives that refer to a great or extreme example of something.
  • ucatt — Union of Construction, Allied Trades and Technicians
  • uccle — a city in central Belgium: suburb of Brussels.
  • udall — Also called Uvedale. Nicholas, 1505–56, English translator and playwright, especially of comedy.
  • udder — a mamma or mammary gland, especially when baggy and with more than one teat, as in cows.
  • udine — a city in NE Italy.
  • ugali — a type of stiff porridge made by mixing corn meal with boiling water: the basic starch constituent of a meal
  • ugric — a branch of the Uralic family of languages, consisting of Hungarian and two languages, Khanty and Mansi, spoken in western Siberia.
  • uh-oh — expressing mild dread
  • uh-uh — used to signify a negative response
  • uhelp — A linear programming system.
  • uhlan — one of a group of lancers in a light-cavalry unit, first appearing in Europe in the Polish army.
  • uhuru — freedom; independence.
  • uigur — a member of a Turkish people dominant in Mongolia and eastern Turkestan from the 8th to 12th centuries a.d., and now living mainly in western China.
  • ujiji — See under Kigoma-Ujiji.
  • ukaea — United Kingdom Atomic Energy Authority
  • ukase — (in czarist Russia) an edict or order of the czar having the force of law.
  • ukiah — a town in NW California.
  • ulama — a body of Muslim scholars or religious leaders
  • ulcer — Pathology. a sore on the skin or a mucous membrane, accompanied by the disintegration of tissue, the formation of pus, etc.
  • ulema — Muslim scholars or men of authority in religion and law
  • ulmin — a dark substance found in decaying vegetation
  • ulnad — towards the ulna
  • ulnae — Anatomy. the bone of the forearm on the side opposite to the thumb. Compare radius (def 7).
  • ulnar — Anatomy. the bone of the forearm on the side opposite to the thumb. Compare radius (def 7).
  • ulno- — the ulna and
  • ulpan — an institute or school for intensive study of Hebrew, especially by immigrants to Israel.
  • ulsan — a city in SE South Korea.
  • ultra — going beyond what is usual or ordinary; excessive; extreme.
  • uluru — a large isolated desert rock, sometimes described as the world's largest monolith, in the Northern Territory of Australia: sacred to local Aboriginal people. Height: 330m (1100 ft). Base circumference: 9 km (5.6 miles)
  • umami — a strong meaty taste imparted by glutamate and certain other amino acids: often considered to be one of the basic taste sensations along with sweet, sour, bitter, and salty.
  • umbel — an inflorescence in which a number of flower stalks or pedicels, nearly equal in length, spread from a common center.
  • umber — an earth consisting chiefly of a hydrated oxide of iron and some oxide of manganese, used in its natural state as a brown pigment (raw umber) or, after heating, as a reddish-brown pigment (burnt umber)
  • umbra — shade; shadow.
  • umiak — an open Eskimo boat that consists of a wooden frame covered with skins and provided with several thwarts: used for transport of goods and passengers.
  • umist — University of Manchester Institute of Science and Technology
  • ummah — the Islamic community.
  • umrah — the pilgrimage, consisting of rituals performed at various shrines, made by a Muslim upon entering Mecca: often part of the hajj.
  • un-pc — not in accordance with the principles of political correctness
  • unami — a member of a North American Indian people, one of the Delaware group.
  • unapt — not appropriate; unfit; unsuitable: an unapt answer.
  • unarm — to deprive or relieve of arms; disarm.
  • unary — pertaining to a function whose domain is a given set and whose range is contained in that set.
  • unbag — to remove or to release from a bag
  • unban — to allow something that was forbidden before
  • unbar — to remove a bar or bars from; open; unlock; unbolt: to unbar a door.
  • unbed — to remove from a bed

On this page, we collect all 5-letter words starting with letter U. It’s easy to find right word with a certain length. It is the easiest way to find 5-letter word that beginning with U to use in Scrabble or Crossword puzzles.

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