Monogram

Webster's Dictionary of the English Language

·noun An arbitrary sign for a word.

II. Monogram ·noun A picture in lines; a sketch.

III. Monogram ·noun A character or cipher composed of two or more letters interwoven or combined so as to represent a name, or a part of it (usually the initials). Monograms are often used on seals, ornamental pins, rings, buttons, and by painters, engravers, ·etc., to distinguish their works.