Used may refer to:
Used good, goods of any type that have been used before
Used, Huesca, a village in Huesca, Aragon, Spain
Used, Zaragoza, a town in Zaragoza, Aragon, Spain
"Used" (song), a song by Rocket from the Crypt from their 1995 album Scream, Dracula, Scream!
Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is scrutinised down to tenths of a percentage point every month.