IPA: /ˈlɛtərɪŋ/
KK: /ˈlɛtərɪŋ/
The art or process of creating letters, often for signs or decorations.
The artist used beautiful lettering to enhance the sign's appearance.
Lettering → It is formed from "letter" (from Old French *lettre*, meaning a written character or symbol) and "-ing" (a suffix used to indicate an action or process). The word "lettering" refers to the process or act of forming letters or writing them out.
Think of the written characters ('letter') and the action of creating them ('-ing') — that's what lettering means.