English Words Starting With U

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Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

u bolt
nounLow in general English, high in technical contexts
/ˈjuː bəʊlt/A U-shaped metal bolt with threads on both ends, used for fastening objects by passing through holes and securing with nuts.
u nu
nounVery High
/ˈjuːʒʊəl/What happens or is done most often; the typical or normal state of affairs.
u quark
nounC2 / Expert
/ˈjuː kwɑːk/An elementary particle in particle physics, one of the six types (flavors) of quarks, with a charge of +2/3 e, which is a fundamental constituent of matter.
u thant
nounLow/Very Low
/ˌuː ˈθænt/The third Secretary-General of the United Nations (1961-1971) from Burma (now Myanmar).
u-bend
nounB2
/ˈjuː bɛnd/A section of pipe shaped like the letter 'U' that holds water to prevent sewer gases from entering a building, typically found under sinks.
u-boat
nounC2
/ˈjuː bəʊt/A German submarine, especially of the types used in World War I and World War II.
u-shaped valley
nounC2
/ˌjuː ʃeɪpt ˈvæl.i/A long, deep valley with a broad, flat bottom and steep sides, created by the movement of a glacier.
u-turn
nounverb-intransitivemedium
/ˈjuː tɜːn/A 180-degree turn, especially by a vehicle, to go in the opposite direction.
u-value
nounLow frequency
/ˈjuː ˌvæl.juː/A measure of thermal transmittance through a material or assembly (such as a window or wall), indicating its insulating effectiveness. A lower U-value means better insulation.
u.s. rda
nounC1
/ˌɑː.diːˈeɪ/A formal document or standard detailing requirements for a system, project, or product. Typically used as a reference for planning, procurement, and compliance.
uakari
nounLow
/wɑːˈkɑːri/A type of New World monkey found in the Amazon basin, known for its distinctive red face and short tail.
uaupes
nounExtremely low / Obscure
/waʊˈpeɪs/A word not found in standard English dictionaries; appears to be a proper noun, likely a geographical name (e.g., a river in Brazil), and not a standard English lexical item.
ub40
nounMedium (in cultural/musical contexts); Low (general usage)
/ˌjuː biː ˈfɔːti/A British reggae and pop band formed in 1978, known for their political and social commentary.
ubangi
nounVery Low
/juːˈbæŋɡi/A river in Central Africa, the largest right-bank tributary of the Congo River, forming part of the border between the Democratic Republic of the Congo and the Republic of the Congo.
ubangi-shari
nounLow/Very Rare (historical term)
/juːˌbæŋɡi ˈʃɑːri/A former French colony in central Africa, predecessor to the modern Central African Republic.
ube
abbreviationnounLow-Frequency
/ˈuːbeɪ/A purple yam (Dioscorea alata), native to Southeast Asia, known for its vivid purple color and sweet, nutty flavor, used primarily as a food ingredient.
uberaba
nounC2
/ˌuːbəˈrɑːbə/A city in the Brazilian state of Minas Gerais, known for its agricultural significance and cattle industry.
uberlandia
nounLow
/ˌuːbə(ɹ)ˈlændiə/The proper name of a major city in the state of Minas Gerais, Brazil.
ubermensch
nounLow
/ˈuːbəˌmen(t)ʃ/A superior human being who transcends conventional morality, as described by the philosopher Friedrich Nietzsche, possessing exceptional strength, creativity, and willpower.
uberrima fides
nounVery Low
/uːˌbɛrɪmə ˈfiːdeɪz/The utmost good faith; a legal principle requiring parties to a contract to act with complete honesty and disclose all material facts.

Showing 1–20 of 1514 words.