first, initially, at first

(music) first fiddle, first violin, concertmaster

(rare, figuratively, derogatory) to think one is God's gift to the world, to think one is the business, to be full of oneself

first of all, firstly, first / first and foremost

(formal, literary) primarily, most of all, first and foremost, chiefly

the first person that comes along; the man in the street, the average person; everyone, anyone

literal sense, literal meaning, face value

(theater) young actor playing young-lover roles / (figuratively) leading man

(figuratively) to make the first move

first time, first try (on one's first try)