A constant is a location where a value is stored, and its value cannot change during the runtime of the program. It's called a constant because it constantly remains the same.
Basic syntax for a constant is name : type = value. The name is a name you assign to the constant (known as the identifier). The : says that a type is coming. The = says a value is coming, then the value itself. For example:
Verse
PlayerSpeed : float = 2.0
This says that PlayerSpeed has a value of 2.0, represented as a decimal value that does not change while the program is running.
Constants always have assigned values. The name and type is the declaration, and the initialization is where that value is expressed.
Compare to variable.
For more information, see Constants and Variables.