Definition of "Early" :
adjective: at or near the beginning of a period of time or course of events or before the usual or expected time
adjective: being or occurring at an early stage of development
"In an early stage."
adjective: of an early stage in the development of a language or literature
"The Early Hebrew alphabetical script is that used mainly from the 11th to the 6th centuries B.C.."
adjective: very young
"At an early age."
adjective: belonging to the distant past
"The early inhabitants of Europe."
adjective: expected in the near future
"Look for an early end to the negotiations."
adverb: before the usual time or the time expected
"She graduated early."
adverb: in good time
adverb: during an early stage
"Early on in her career."