Real Dictionary

original
adjective: You use original when referring to something that existed at the beginning of a process or activity, or the characteristics that something had when it began or was made.

original in American English
a pristine form or primary type that has given rise to varieties
having to do with an origin; first; earliest
adjective: belonging or pertaining to the origin or beginning of something, or to a thing at its beginning
noun: a primary form or type from which varieties are derived

original in British English
adjective: of or relating to an origin or beginning
noun: the first and genuine form of something, from which others are derived