Modifiers matching ground:

• safe,
• private,
• neutral,
• soft,
• bad,
• hard,
• working,
• dangerous,
• high,
• new,
• rough,
• technical,
• routine,
• convenient,
• uncultivated,
• particular,
• waterlogged,
• unstable,
• barren,
• unsecured,
• familiar,
• firm,
• open,
• rocky,
• metal,
• slippery,
• sacred,
• level,
• irregular,
• clear,
• higher,
• low,
• softer,
• clean,
• flat,
• grown,
• under,
• durable,
• hazardous,
• good,
• old,
• difficult,
• stable,
• white,
• wet,
• uneven,
• heavy,
• metallic,
• electrical,
• shiny,
• vertical,
• coarse,
• holy,
• loose,
• sensitive,
• off,
• paved,
• harder,
• conductive,
• elevated,
• permeable,
• woven,
• mechanical,
• undisturbed,
• dry,
• sandy,
• over,
• porous,
• up,
• weak,
• moist,
• artificial,
• disturbed,
• natural,
• sized,
• rigid,
• common,

Simple categories matching open:

• area,
• menu,
• cell,
• clearing,
• space,
• market,
• mollusc,
• room,
• powerboat,
• structure,
• water,
• land,
• application,
• site,
• housing,
• function,
• network,
• building,
• bivalve,
• stage,
• conflict,
• shellfish,
• conduit,
• country,
• grain,
• light,
• grassland,
• section,
• collocation,
• watercourse,
• perch,
• system,
• container,
• fencing,
• door,
• forum,
• liquid,
• specification,
• file,
• type,
• activity,
• beam,
• air,
• basin,
• surface,
• material,
• flow,
• seam,
• receptacle,
• roll,
• organization,
• business,
• source,
• thing,
• position,
• object,
• struggle,
• package,
• designer,
• knowledge,
• item,
• issue,
• pattern,
• highway,
• canopy,
• service,
• forest,
• shelter,
• field,
• aquarium,
• facility,
• vegetation,
• ampoule,
• ground,
• protocol,
• woodland,
• office,
• vessel,
• shape,
• competition,
• wall,
• sector,
• workplace,
• car,
• unit,
• view,
• orifice,
• wound,
• pit,
• marketplace,
• feature,
• meat,
• vehicle,
• nester,
• cover,
• habitat,
• document,
• equipment,
• location,
• dish,
• image,
• group,
• standard,
• boat,
• excavation,
• territory,
• nut,
• stairway,
• prey,
• projection,
• place,
• procedure,
• face,
• article,
• form,
• burning,
• lagoon,
• fire,
• version,
• design,
• program,
• box,
• passage,
• food,
• waterway,
• fixture,
• event,
• region,
• flower,
• implementation,
• establishment,
• envelope,
• entity,
• terrain,
• resistance,
• body,
• science,
• environment,
• gesture,
• fabric,
• information,
• society,
• meeting,
• part,
• curve,
• ocean,
• substance,
• appliance,
• sea,
• volume,
• institution,
• construction,
• situation,
• community,
• enclosure,
• conveyance,
• medium,
• code,
• patch,