n.
Function: noun
Date: 13th century
1 ― see NUMBER table
2 : something that is first: as a : the first occurrence or item of a kind b : the first forward gear or speed of a motor vehicle c : the highest or chief voice or instrument of a group d : an article of commerce of the finest grade e : the winning or highest place in a competition, examination, or contest
3 : FIRST BASE
– at first : at the beginning : INITIALLY