[typography] - a copied comment from Font or Typeface?:
The correct hierarchy of typographic terminology, as I learned it, is broken down into the four Fs.
FOUNDRY: The designer and/or manufacturer of sets of type. Berthold Direct Corporation is a type foundry.
FAMILY: Related typefaces from the same foundry. Berthold Garamond is a type family.
FACE: The style of the type (regular, medium, bold, etc.). Berthold Garamond regular is one typeface while Berthold Garamond italic is a different typeface.
FONT: A typeface at a specific size. Berthold Garamond italic, 10 point is one font while Berthold Garamond italic, 12 point is a different font.
simply for the joy of the esoteric terminology hierarchy. See Template:Typography terms - Wikipedia if you need more.