The Unicode character U+2002 represents "En Space". An En Space is a whitespace character that is half the width of an em in typography. In general, an em is a unit of measurement used in typography.
You can copy En Space here and use it wherever you like:
| Unicode | U+2002 |
|---|---|
| HTML Entity |   |
| LateX | \enspace |
| CSS | \u2002 |