First
Definition of first:
part of speech: adverb
Before all others in order, place, rank, time, etc.; sooner.
part of speech: noun
part of speech: adverb
Before anything else, in time, space, rank, etc.
part of speech: adjective
part of speech: adjective
The ordinal of one; foremost in place, rank, dignity, time, excellence, etc.; earliest; most important; chief.
part of speech: noun
part of speech: adjective
Foremost; preceding all others in place, time, or degree; most eminent; chief.