1.noun (common) (futsuumeishi); noun or participle which takes the aux. verb suru
being the sole winner; beating everyone else
2.nouns which may take the genitive case particle 'no'; adjectival nouns or quasi-adjectives (keiyodoshi)
winner-take-all
3.adjectival nouns or quasi-adjectives (keiyodoshi)
mostly alone; mostly by oneself