1. pure, genuine, real

noun (common) (futsuumeishi) adjectival nouns or quasi-adjectives (keiyodoshi)

2. pure (of a subject of study; as opposed to applied, practical, etc.)

adjectival nouns or quasi-adjectives (keiyodoshi) noun (common) (futsuumeishi)

3. genuine (parts, accessories, etc.), official, first-party

adjectival nouns or quasi-adjectives (keiyodoshi) noun (common) (futsuumeishi)