Comprehensive resource for understanding and mastering English idioms
The idiom "household name" refers to a brand, product, or service that is very well-known and commonly recognized by people within a household or family unit. It suggests that the entity has become so familiar that it is almost like part of the household itself. The phrase can also be used more broadly to refer to someone or something that is widely known and respected within a particular community or society.
The term "household" has been in use since the 13th century, referring to the group of people living together in a particular dwelling or home. The idea of certain brands, products, or services becoming so well-known that they are considered part of the household has been around for much longer than this phrase itself, however. The idiom likely emerged as a way to describe brands and products that were so widely recognized that they were almost like family members to many people.