Sometimes abbreviated as LC, lowercase is a typeface of small characters. For example, a, b, and c is lowercase and A, B, and C is uppercase. As long as the Shift key is not being pressed and the Caps lock is not active everything typed is in lowercase.
How to uncapitalize
Using the lc command
my $example = "HELLO WORLD";
$example = lc($example);
In the above example, the $example variable is first set as all lowercase. The second line makes the text all lowercase.
Should I use "lowercase" or "lower case" in my writing?
Both "lowercase" and "lower case" (with a space) are correct. However, you should only use one form in your writing. According to The Associated Press Stylebook and the Microsoft Manual of Style you should write "lowercase" as one word when being used as an adjective and as a noun.