Modifiers matching mirror:

• metallic,
• auxiliary,
• rotary,
• aspheric,
• reflective,
• flat,
• colored,
• outer,
• small,
• plastic,
• polyhedral,
• upright,
• metal,
• secondary,
• plane,
• operational,
• external,
• cosmetic,
• suitable,
• moving,

Simple categories matching upright:

• surface,
• growth,
• annual,
• object,
• stone,
• obstruction,
• form,
• species,
• structure,
• item,
• thing,
• support,
• plant,
• barrier,
• perennial,
• mirror,
• tree,