let·ter·head 
/ˈlɛtɚˌhɛd/ noun
plural let·ter·heads /ˈlɛtɚˌhɛd/ noun [count] : the name and address of an organization (such as a company) that is printed at the top of a piece of paper used for writing official letters
▪ We changed the design of our letterhead. ; also [noncount] US : paper that has the name and address of an organization printed at the top
▪ They sent her a letter printed on company letterhead.
▪ We changed the design of our letterhead. ; also [noncount] US : paper that has the name and address of an organization printed at the top
▪ They sent her a letter printed on company letterhead.
