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.