noun - the rear surface of the human body from the shoulders to the hips.
adverb - expressing a return to an earlier or normal condition.
verb - cover the back of (an object) in order to support, protect, or decorate it.
adjective - of or at the back of something.
"Back" is a word that can fill many grammatical functions. This week, EBSQ's Art of the Day presents art that illustrate a few of the ways the word "back" can be used in the English language.