weight: The thickness of a character. Light/normal or Bold
width: the horizontal dimensions of a character. The set width is the body of the letter plus a sliver of space that protects it from other letters.
style: design variations of type. Bold, italic, roman
Type can be measured in points, picas and inches. Picas measure width and points measure height.
point: a measurement roughly the size of a pixel
pica: 1/6 of and inch, also made up of 12 points.
x-height: the height of the main body of lowercase type, excluding ascenders and descenders
cap height: the distance from the top of a capital letter to the bottom
leading: the space between lines of type