1. one portion, one serving, one person

noun (common) (futsuumeishi)

2. adult, grown-up, person who has come of age

noun (common) (futsuumeishi) nouns which may take the genitive case particle 'no' adjectival nouns or quasi-adjectives (keiyodoshi)

3. fully fledged, established, qualified

adjectival nouns or quasi-adjectives (keiyodoshi) nouns which may take the genitive case particle 'no'