Modifiers matching gas:

• supporting,
• desirable,
• rare,
• inert,
• refrigerant,
• pure,
• floating,
• combustible,
• moving,
• dilute,
• volatile,
• ambient,
• weak,
• noble,
• conductive,
• standard,
• foreign,
• transparent,
• hazardous,
• auxiliary,
• flammable,
• mobile,
• explosive,
• malodorous,
• external,
• oxidative,
• ordinary,
• divalent,
• organic,
• industrial,
• aggressive,
• secondary,
• toxic,
• fixed,
• absorptive,
• strong,
• supplemental,
• metal,
• liquid,
• conventional,
• electropositive,
• common,
• invisible,
• warming,
• elemental,
• diamagnetic,
• refrigerated,
• supercritical,
• medicinal,
• atmospheric,
• basic,
• respiratory,
• thin,
• mixed,
• unwanted,
• electronegative,
• atomic,
• deleterious,
• single,
• protective,
• individual,
• deadly,
• nonflammable,
• special,
• saturated,
• undesirable,
• light,
• extraneous,
• neutral,
• heavy,
• relativistic,
• major,
• rich,
• inexpensive,
• additional,
• propellant,
• key,
• manufactured,
• luminous,
• complex,
• off,
• dissolved,
• valuable,
• number,
• injurious,
• passive,
• carbonaceous,
• useful,
• compressed,
• clean,
• lighter,
• inflammable,
• molecular,
• base,
• simple,
• incoming,
• warm,
• ignitable,
• poisonous,
• diffusing,
• safe,
• unstable,
• noxious,
• abundant,
• medical,
• starting,
• liquified,
• active,
• chemical,
• hot,
• identifiable,
• compressible,
• impure,
• artificial,
• rarefied,
• natural,
• frozen,
• carcinogenic,
• soluble,
• scientific,
• commercial,
• irritating,
• controlled,
• dense,
• cold,
• malign,
• consumable,
• fast,
• damaging,
• suffocating,
• monatomic,
• acidic,
• out,
• oxidizable,
• biogenic,
• familiar,
• dusty,
• surrounding,
• technical,
• noncombustible,
• classical,
• hydrophobic,
• heavier,
• faster,
• corrosive,
• under,
• paramagnetic,
• heated,
• liquefied,
• obnoxious,
• tenuous,
• insoluble,
• acid,
• metabolic,
• supportive,
• interfering,
• residual,
• synthetic,
• indoor,
• diatomic,
• hydrophilic,
• incombustible,
• innocuous,
• stable,
• anthropogenic,
• separate,
• harmful,
• available,
• radioactive,
• miscellaneous,
• dangerous,
• harmless,
• vital,
• airborne,
• traditional,
• medium,
• real,
• nonpolar,
• small,
• benign,
• working,
• cheap,
• particular,
• cryogenic,
• mental,
• polar,
• unsaturated,
• automotive,
• beneficial,
• permanent,
• lightweight,
• minor,
• nontoxic,
• buoyant,
• suitable,
• alkaline,
• inorganic,
• ionic,
• reactive,
• essential,
• relevant,
• expensive,
• popular,
• vesicant,
• convenient,
• detrimental,
• unique,
• critical,
• raw,
• edible,
• environmental,
• important,
• model,
• sulfurous,
• monoatomic,
• dry,

Simple categories matching heavier:

• weapon,
• music,
• post,
• material,
• fabric,
• article,
• atom,
• distillate,
• metal,
• object,
• item,
• source,
• work,
• rock,
• car,
• impurity,
• wood,
• scent,
• isotope,
• vehicle,
• utensil,
• paper,
• container,
• alcohol,
• meal,
• linen,
• papers,
• ship,
• gas,
• particle,
• fish,
• agent,
• needle,
• dirtiness,
• fastener,
• clothing,
• pasta,
• thread,
• fraction,
• furniture,
• piece,
• mixture,
• congener,
• bread,
• fibre,
• thing,
• soil,
• decoration,
• ball,
• filament,
• constituent,
• contaminant,
• leaf,
• commodity,
• stuff,
• vegetable,
• electron,
• aggregate,
• halogen,
• lepton,
• unit,
• fixture,
• clothes,
• plant,
• substrate,
• stain,
• hardwood,
• equipment,
• machine,
• implement,
• machinery,
• line,
• footwear,
• foundation,
• elements,
• sweetener,
• gear,
• fare,
• armament,
• part,
• component,
• order,
• activity,
• food,
• hydrocarbon,
• paint,
• weaponry,
• package,
• chemical,
• body,
• sawdust,
• system,
• residue,
• solid,
• ion,
• deposit,
• glove,
• aircraft,
• tool,
• meson,
• fluid,
• camera,
• style,
• pellet,
• arms,
• medium,
• substance,
• contamination,
• liquid,
• surface,
• sport,
• artifact,
• alloy,
• knit,
• tm,
• product,
• volatile,
• textile,
• stock,
• structure,
• transport,
• compound,
• grain,
• job,
• industry,
• load,
• bird,
• waste,
• fuel,
• sediment,
• element,
• hadron,
• construction,
• area,
• meat,
• dish,
• conductor,
• instrument,
• garment,
• cake,
• alkane,
• mineral,