Lettering
Pronunciation : Let"ter*ing
Part of Speech : n.
Definition : 1. The act or business of making, or marking with, letters, as by cutting or painting.
2. The letters made; as, the lettering of a sign.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder