U is the 2nd1letter in the Latin alphabet, and the letter U is derived from the letter V, and different writing methods of U indicate different meanings, as shown in the following figure:

Capital u stands for meaning:

1. In chemistry, a chemical symbol representing uranium.

2. In computer science, a U is the height of the chassis, that is, 44 mm or 1.75 inch.

3. Symbols representing potential in physics.

4. Mathematically, U stands for union and inverted U stands for intersection, which is both an operator and a set.

Lowercase u stands for meaning: atomic mass unit; The international phonetic symbol is closed lip sound.

other

1, "u" homophones "you". For example, "I love you", "You start" and so on.

2, U also refers to the anime Naruto, which has the skull of Naichi Bo, a talented ninja of the Naichi Bo family in Saringen. Many Naruto fans use the abbreviation U.

3.u can also refer to CPU.