Definition of "Original" :

noun: an original creation (i.e., an audio recording) from which copies can be made

noun: something that serves as a model or a basis for making copies

"This painting is a copy of the original."

adjective: not derived or copied or translated from something else

"The play is original; not an adaptation."

adjective: preceding all others in time or being as first made or performed

"The original inhabitants of the Americas."

adjective: being or productive of something fresh and unusual; or being as first made or thought of

"A truly original approach."

adjective: (of e.g. information) not secondhand or by way of something intermediary

"His work is based on only original, not secondary, sources."