Modifiers matching glass:

• functional,
• fixed,
• amorphous,
• flat,
• hard,
• colored,
• durable,
• cold,
• decorative,
• handmade,
• optical,
• curved,
• natural,
• beautiful,
• soft,
• resistant,
• grown,
• textured,
• cheap,
• dimensional,
• prepared,
• clear,
• thin,
• broken,
• typical,
• interior,
• nearby,
• warm,
• ornamental,
• blown,
• coloured,
• stained,
• small,
• under,
• pure,
• special,
• persian,
• industrial,
• opaque,
• expensive,
• safe,
• melting,
• fine,
• artificial,
• inorganic,
• antique,
• working,
• harder,
• large,
• architectural,
• polished,
• black,
• transparent,
• hollow,
• narrow,
• inhomogeneous,
• inexpensive,
• plane,
• fragile,
• tall,

Simple categories matching safe:

• location,
• source,
• medium,
• area,
• waste,
• network,
• ground,
• surface,
• option,
• substance,
• container,
• place,
• shelter,
• product,
• organization,
• relaxant,
• drug,
• fuel,
• building,
• room,
• structure,
• glass,
• nutrient,
• form,
• assets,
• site,
• activity,
• layer,
• object,
• forum,
• zone,
• exit,
• facility,
• topic,
• movement,
• equipment,
• disposal,
• language,
• antibiotic,
• job,
• suture,
• investment,
• item,
• ingredient,
• composition,
• pass,
• thing,
• instrument,
• sport,
• cultivar,
• means,
• accommodation,
• adhesive,
• symbol,
• practice,
• therapy,
• way,
• toy,
• footwear,
• acid,
• housing,
• unit,
• compound,
• address,
• recreation,
• grain,
• section,
• situation,
• person,
• part,
• access,
• environment,
• point,
• market,
• space,
• pick,
• enclosure,
• food,
• tool,
• fabric,
• offering,
• plastic,
• procedure,
• obligation,
• material,
• route,
• people,
• merchandise,
• gas,
• document,
• meat,
• use,
• refrigerant,
• event,
• cleanup,
• behavior,
• fluid,
• flour,
• funds,
• metal,
• chemical,
• stash,