Dictionary

Definition of U

• (noun) the 21st letter of the Roman alphabet
• (noun) a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
• (noun) a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine
• (adjective satellite) (chiefly British) of or appropriate to the upper classes especially in language use

Synonyms of U

• Atomic Number 92
• Uranium
• Uracil

Antonyms of U

• Low-Class
• Lower-Class
• Middle-Class

Homophones of U

• Ewe
• Uwe
• Yew
• You
• Yu
• Yue