Meaning of 一番乗 in Japanese

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Definition of 一番乗

いちばん(ichiban) 【一番】

(n-adv) best; first; number one
１つがいのカナリアだけが彼女の友達であった。
A pair of canaries are her only friends.
game; round; bout; fall; event (in a meet)

ひとつがい(hitotsugai) 【一番】

じょう(jou) 【乗】

いちばんのり(ichibannori) 【一番乗り】

(n, vs) leader of a charge; first to arrive
君が一番乗りのようだ。
It seems as if you are the first one here.