Modifiers matching muscle:

• smaller,
• key,
• smooth,
• larger,
• superficial,
• powerful,
• spasmodic,
• complementary,
• pelvic,
• distal,
• individual,
• skeletal,
• distant,
• whole,
• large,
• abdominal,
• adjacent,
• back,
• adult,
• proximal,
• surrounding,
• stabilizing,
• major,
• fleshy,
• mammalian,
• outer,
• thicker,
• somatic,
• artificial,
• active,
• tight,
• small,
• locomotor,
• nearby,
• mixed,
• peripheral,
• respiratory,
• biologic,
• single,
• visceral,
• flat,
• big,
• deep,
• intact,
• involuntary,

Simple categories matching flat:

• surface,
• object,
• feature,
• web,
• tray,
• stick,
• panel,
• material,
• medium,
• article,
• item,
• place,
• wire,
• cloth,
• specimen,
• solid,
• ribbon,
• fabric,
• component,
• road,
• mirror,
• course,
• device,
• original,
• dish,
• bread,
• circuit,
• works,
• fish,
• weapon,
• instrument,
• area,
• fruit,
• footwear,
• substrate,
• artifact,
• thing,
• tin,
• ground,
• food,
• segment,
• image,
• graphic,
• blank,
• abstraction,
• slab,
• terrain,
• representation,
• portion,
• collection,
• land,
• earth,
• floor,
• subject,
• member,
• tool,
• furniture,
• string,
• board,
• foliage,
• condition,
• seal,
• bottom,
• implement,
• body,
• plate,
• record,
• underside,
• product,
• background,
• vehicle,
• epithelium,
• flower,
• foot,
• system,
• drawing,
• metal,
• figure,
• embellishment,
• speaker,
• polygon,
• paint,
• clothing,
• piece,
• package,
• document,
• gasket,
• facility,
• artwork,
• base,
• crystal,
• cookware,
• substance,
• plane,
• brush,
• screen,
• ware,
• x-ray,
• tissue,
• tube,
• topology,
• painting,
• support,
• sign,
• content,
• shape,
• cover,
• creature,
• textile,
• rock,
• pan,
• marker,
• block,
• stage,
• bottle,
• accessory,
• upland,
• card,
• option,
• waveform,
• wall,
• display,
• side,
• design,
• roof,
• muscle,
• structure,
• ceiling,
• plan,
• stone,
• strip,
• paper,
• copy,
• space,
• glass,
• section,
• shield,
• container,
• mineral,
• book,
• fee,
• art,
• linen,
• ride,
• pad,
• conductor,
• sheet,
• deck,
• rod,
• particle,
• part,
• tableware,
• mold,
• charge,
• form,
• region,
• ornament,
• work,
• lighting,
• equipment,
• blade,