|Noun||1.||first - the first or highest in an ordering or series; "He wanted to be the first"|
|2.||first - the first element in a countable series; "the first of the month"|
|3.||first - the time at which something is supposed to begin; "they got an early start"; "she knew from the get-go that he was the man for her"|
|4.||first - the fielding position of the player on a baseball team who is stationed at first base|
|5.||first - an honours degree of the highest class|
|6.||first - the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving|
|Adj.||1.||first - preceding all others in time or space or degree; "the first house on the right"; "the first day of spring"; "his first political race"; "her first baby"; "the first time"; "the first meetings of the new party"; "the first phase of his training"|Antonyms: intermediate
- lying between two extremes in time or space or degree; "going from sitting to standing without intermediate pushes with the hands"; "intermediate stages in a process"; "intermediate stops on the route"; "an intermediate level"
- coming after all others in time or space or degree or being the only one remaining; "the last time I saw Paris"; "the last day of the month"; "had the last word"; "waited until the last minute"; "he raised his voice in a last supreme call"; "the last game of the season"; "down to his last nickel"
|2.||first - indicating the beginning unit in a series|
|3.||first - serving to set in motion; "the magazine's inaugural issue"; "the initiative phase in the negotiations"; "an initiatory step toward a treaty"; "his first (or maiden) speech in Congress"; "the liner's maiden voyage"|
|4.||first - serving to begin; "the beginning canto of the poem"; "the first verse"|
|5.||first - ranking above all others; "was first in her class"; "the foremost figure among marine artists"; "the top graduate"|
|6.||first - highest in pitch or chief among parts or voices or instruments or orchestra sections; "first soprano"; "the first violin section"; "played first horn"|Antonyms: second
- a part or voice or instrument or orchestra section lower in pitch than or subordinate to the first; "second flute"; "the second violins"
|7.||first - being the gear producing the lowest drive speed; "use first gear on steep hills"|
|Adv.||1.||first - before anything else; "first we must consider the garter snake"|
|2.||first - the initial time; "when Felix first saw a garter snake"|
|3.||first - before another in time, space, or importance; "I was here first"; "let's do this job first"|
|4.||first - prominently forward; "he put his best foot foremost"|