Modifiers matching frame:

• rigid,
• key,
• metal,
• ferromagnetic,
• physical,
• complicated,
• curved,
• main,
• structural,
• dynamic,
• plastic,
• metallic,
• layer,
• wooden,
• natural,
• mechanical,
• narrative,
• intermediate,
• static,
• heavy,
• individual,
• larger,
• conceptual,
• standard,
• supporting,
• synthetic,
• single,

Simple categories matching curved:

• surface,
• space,
• object,
• electrode,
• passage,
• side,
• structure,
• part,
• fruit,
• bone,
• substrate,
• work,
• opening,
• section,
• shape,
• feature,
• passageway,
• scene,
• glass,
• entity,
• figure,
• end,
• construction,
• face,
• element,
• vessel,
• line,
• boundary,
• pattern,
• elements,
• article,
• reflector,
• area,
• piece,
• outline,
• region,
• manner,
• solid,
• plate,
• portion,
• image,
• body,
• hull,
• shock,
• wall,
• frame,
• bottom,
• item,
• form,