Here are some clothing items that begin with the letter U:
underarmor
adjectives that begin with the letter U areuglyunctuousunderratedundiplomaticunbelievableunstoppableurgentusefuluselessuncomfortableUltraUltraconservativeUltramarineUltramodernUmberUmbilicalUnitedUniversalUnjustUnkindUnknowingUnknownUnlawfulUnlikeUnlikelyUnluckyUnlimited
Some things that fly that begin with the letter U are:United Airlines airplaneUlysses butterflyUmbrella bird
Some superheroes that begin with the letter U are Union Jack, Ultra Boy, and U.S.Agent.
Unemployment and urbanization are social study words. They begin with the letter u.
Umbrella plant, urginea and ursinia are flowers. They begin with the letter U.
Uranium
Underdog
Urchins
ullucus
us
urgency