first

(noun): The person or thing in the first position.
(noun): The first gear of an engine.
(noun): Something that has never happened before; a new occurrence.
(noun): First base
(noun): A first-class honours degree.
(noun): A first-edition copy of some publication.
(noun): A fraction of an integer ending in one.
(adjective): Preceding all others of a series or kind; the ordinal of one; earliest.
(adjective): Most eminent or exalted; most excellent; chief; highest.
(adverb): Before anything else; firstly.
(adverb): For the first time;