Meaning of こぐん in Japanese

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Definition of こぐん

こぐん(kogun) 【孤軍】

こぐんふんとう(kogunfuntou) 【孤軍奮闘】

(n, vs) fighting alone
孤軍奮闘したけれど、衆寡敵せず、彼のビジネスプランは受け入れられなかったよ。
He put up a brave and lone struggle, but up against such heavy odds he couldn't get his business plan accepted.