U vs V - What's the difference?

u | v |

V is a synonym of u.

V is likely misspelled.

V has no English definition.

As a letter u

is : I prefer the u in Arial to the one in Times New Roman.
As a noun u
is a thing in the shape of the letter U.

u
Translingual
{{Basic Latin character info, previous=t, next=v, image=
Etymology 1
Minuscule variation of U, a modern variation of classical Latin V, from seventh century Old Latin adoption of Old Italic letter .
Letter

The twenty-first letter of the .

See also
(Latn-script) * (other scripts) Cyrillic * (wikipedia "u")
Etymology 2

Symbol
(head)
symbol for unified atomic mass unit

).

(label) up quark

See also
{{Letter , page=U , NATO=Uniform , Morse=··– , Character=U , Braille=? }} Image:Latin U.png, Capital and lowercase versions of U , in normal and italic type Image:Fraktur letter U.png, Uppercase and lowercase U in Fraktur ----
v
Translingual
{{Basic Latin character info, previous=u, next=w, image=
Etymology 1
Minuscule variation of Latin V, from seventh century Old Latin adoption of Old Italic letter .
Letter

The twenty-second letter of the .

See also
(Latn-script) * (select symbols) * (other scripts) Cyrillic * (wikipedia "v")
Etymology 2
Lower case form of upper case roman numeral V, from abbreviation of IIII? or IIIIV (representing 5), from tally stick markings resembling \\\\? or ////?, from the practice of designating each fifth notch with a double cut, like the corresponding Western tally mark,
Alternative forms
* V,
Numeral

cardinal number five (5).

See also
* Previous: iv (4) * Next: vi (6) *
Etymology 3

Symbol
(head)
velocity

).

See also
{{Letter , page=V , NATO=Victor , Morse=···– , Character=V , Braille=? }} Image:Latin V.png, Capital and lowercase versions of V , in normal and italic type Image:Fraktur letter V.png, Uppercase and lowercase V in Fraktur ----