One example of something cold that starts with the letter U is "ultracold." Ultracold refers to temperatures close to absolute zero, which is -273.15 degrees Celsius or 0 Kelvin. In physics and chemistry, ultracold temperatures are often used to study quantum phenomena and create exotic states of matter.
· Uranus
underwear
unicorn
yes
Uruguay
· Unicorn Fish
A letter that starts with U is an urgent letter.
UgandaUige is a city in Angola
something famas about it that has the letters in North Carolina
letter that starts with u is unicorne
UCLA (University of California, Los Angeles)
Trick question - there is no letter U in the Roman alphabet.