The ampersand (&) is a logogram used as a substitute for the word and.

A sign or character representing a word or phrase, such as those used in shorthand and some writing systems.

An Akkadogram is an word in the ancient Mesopotamian language of Akkadian, which is used as a logogram is some other language, such as the Hittite language.

Logo is the shortened version of 'logogram'. Logo comes from the Greek word 'logos' where it meant 'word'

The English word logo (circa 1937) is a short form of logogram (circa 1840), from the Greek word logos, meaning "word" + gram, meaning "what is written".