Simple categories matching iron:

• alloy,
• content,
• object,
• hardware,
• container,
• article,
• food,
• user,
• implement,
• work,
• complex,
• utensil,
• ornament,
• tool,
• artefact,
• commodity,
• works,
• deposit,
• part,
• compound,
• status,
• measure,
• item,
• material,
• halide,
• group,
• salt,
• building,
• bar,
• residue,
• valve,
• pulse,
• metal,
• mineral,
• bridge,
• structure,
• equipment,
• unit,
• artifact,
• furniture,
• device,
• layer,
• substrate,
• molecule,
• product,
• weapon,
• level,
• piece,
• jewellery,
• preparation,
• pot,
• fastener,
• ware,
• vegetable,
• pan,
• meat,
• protein,
• attachment,
• instrument,
• casting,
• fitting,
• cyanide,
• carrier,
• oxide,
• cloth,
• absorption,
• particle,
• toy,
• filter,
• surface,
• construction,
• merchandise,
• thing,
• appliance,

Members with property iron:

• nail,
• phosphate,
• foil,
• ferric_bromide,
• cannon,
• silicate,
• anchor,
• screwdriver,
• liner,
• knife_handle,
• acetate,
• knife,
• farm_tool,
• tool,
• birdcage,
• electrical_insulator,
• potato,
• ice_anchor,
• assagai,
• decorative_hanging,
• flatiron,
• shale,
• dried_beef,
• tablespoon,
• dagger,
• hoe,
• lime,
• enamel_pot,
• chronic_liver,
• utility,
• sword,
• pot,
• ferrous_sulfate,
• manganese,
• ferrous_chloride,
• railroad-car_wheel,
• anvil,
• hemoglobin_hb,
• petrol-engine_block,
• grate,
• household_tool,
• scabbard,
• iron_bridge,
• wheelchair,
• copper,
• hammer,
• screw,
• heme,
• cup,
• fencing_wire,
• sickle,
• scrap,
• bed,
• steel_billet,
• bean,
• iron_chloride,
• tomahawk,
• host,
• machinery,
• cows_liver,
• asparagus,
• machine-tool_spindle,
• zinc,
• shutter_dog,
• necklace,
• small_nail,
• borate,
• crawler_tractor,
• glauconite,
• drawer_runner,
• broccoli,
• sled_runner,
• chisel,
• mace,
• towel,
• kitchen_shed,
• alnico,
• horseshoes,
• irons,
• watch,
• armament,
• ferric_pyrophosphate,
• iron_bromide,
• brooch,
• iron_ax,
• spur,
• gate_valve,
• drain_pipe,
• car,
• drift_bolt,
• iron_tyre,
• invar,
• soybean,
• cytochrome_oxidase,
• iron_chair,
• iron_stool,
• agricultural_implement,
• post,
• emergency_stairway,
• duct,
• farm,
• property,
• trap,
• biotite,
• valve,
• broken_ploughshare,
• staple,
• pipe,
• pulse,
• oxidative_stress,
• taconite,
• fortified_bread,
• iron_alloy,
• square_steel,
• arsenic,
• cadmium,
• engine_house,
• fireplace_tool,
• hemin,
• ferric_nitrate,
• iron_chelate,
• pole_ball,
• key,
• pottery,
• pincer,
• bayonet,
• drum,
• exterior_handrail,
• bread,
• lamb,
• skillet_fragment,
• carbonyl_iron,
• sheet_foil,
• legume,
• serum_ferritin,
• pull,
• ferritin_iron,
• scissors,
• ferrous_bromide,
• household_hardware,
• chamosite,
• rod,
• meat,
• plough,
• hydraulic_motor,
• sulfide,
• iron_oxide,
• plough_share,
• heart,
• invar_alloy,
• washer,
• bit,
• rusted_nail,
• hemolysis,
• chair,
• lamp_cabin,
• aluminium_sulfate,
• spear,
• vermiculite,
• fishing_reel,
• iron_track,
• aluminum_pan,
• ferric_sulfate,
• apricot,
• field_lattice,
• heme_protein,
• caudate_nucleus,
• cover,
• pottery_rack,
• diesel-engine_crankshaft,
• beef,
• fish,
• bowls,
• iron_carbonate,
• awl,
• utensil,
• tank,
• mattock,
• nickel,
• ferric_oxide,
• small_knife,
• uranium,
• railing,
• clams,
• fire,
• excavator,
• arrow_point,
• oxide,
• hemimorphite,
• pyrrhotite,
• cast-iron_skillet,
• ore,
• statue,
• hatchet,
• mixture,
• brass,
• faucet,
• municipal_casting,
• hair_straightener,
• old_iron,
• check_valve,
• stove,
• sofa,
• pyrite,
• weapon,
• sulfide_compound,
• olivine,
• amphibole,
• ferrous_carbonate,
• rifle,
• chromium,
• lentil,
• stainless-steel_pot,
• cabinet,
• veggie,
• pitprop,
• casting,
• horse_bell,
• arched_support,
• elevated_transferrin,
• iron_hydroxide,
• pan,
• chicken,
• harpoon,
• poultry,
• peroxide,
• shovel,
• coat,
• ferric_orthophosphate,
• crankshaft,
• perimeter_fencing,
• limonite,
• wall_art,
• ferricyanide,
• cereal,
• steel_pipe,
• iron_oxalate,
• tin,
• hematite,
• gas_pipe,
• chandelier,
• ferric_ammonium,
• permalloy,
• furnace_roof,
• bedside_table,
• shoemaker_hammer,
• ferrous_sulphate,
• hull_fitting,
• wholemeal_bread,
• haematite,
• machete,
• cutlery,
• pin,
• mirror,
• earring,
• ammunition,
• game,
• underground_pipeline,
• gridiron,
• nickel_oxide,
• torpedo,
• red_nucleus,
• mill_irons,
• road_reinforcement,
• spade,
• bromide,
• iron_pot,
• wedge,
• wheat,
• sheet,
• siderite,
• chloride,
• camshaft,
• tuna,
• motion_box,
• runner,
• hinge,
• door,
• girder,
• flat_steel,
• iron_sucrose,
• iron_carbonyl,
• ferric_acetate,
• total,
• cu,
• scale,
• rice_bran,
• copper_acetate,
• ferric_hydroxide,
• patio_furniture,
• spike,
• lamp,
• dress_accessory,
• hoe_blade,
• arrowhead,
• mailbox,
• little_spade,
• liver,
• silicate_mineral,
• canopy_bed,
• cabbage,
• arsenopyrite,
• iron_sulfate,
• iron_sword,
• cook_stove,
• picket,
• roller,
• filter,
• gear,
• horse_shoes,
• broken_sword,
• guide_column,
• fabricated_iron,
• shell_fragment,
• pyroxene,
• pyrites,
• co,
• tee_bracket,
• door_hinge,
• hemoglobin,
• shovel_face,
• ferric_phosphate,
• blacksmith_tool,
• pickaxe,
• complex,
• tube,
• iron_sulphate,
• iron_nitrate,
• peak,
• large_pot,
• building,
• windlass,
• seed_frame,
• lance,
• foot_scraper,
• ferric_chloride,
• ferrous_acetate,
• iron_railing,
• billet,
• reactor,
• malaria_virus,
• hairpin,
• steel,
• iron_crib,
• potassium_ferricyanide,
• bracelet,
• spinach,
• packaging_product,
• garden_set,
• table,
• ferrous_lactate,
• radiator,
• bed_frame,
• ferrous_nitrate,
• billhook,
• oyster,
• hydroxide,
• projectile_point,
• tofu,
• cooking_pot,
• strip,
• iron_pipe,
• balcony_railing,
• transferrin,
• grave_fence,
• iron_sulfide,
• pick,
• deck_winch,
• volatile_carbonyl,
• globe_valve,
• fluoride,
• cobalt,
• lamppost,
• iron_table,
• straight_pin,
• horse_trappings,
• transferrin_saturation,
• steel_tower,
• boot_scraper,
• sandstone,
• hasp,
• window,
• engineering_casting,
• silver,
• ferrocyanide,
• adze,
• nitrate,
• sulfate,
• kettle,
• boiler_house,
• iron,
• lock,
• investment_casting,
• wrought-iron_chest,
• saucepan,
• dried_fig,
• ilmenite,
• ferric_fluoride,
• dutch_oven,
• pintle,
• goethite,
• sun,
• torch_holder,
• wrought-iron_spike,
• combustion_chamber,
• column,
• chest_table,
• stirrup,
• needle,
• short_sword,
• chains,
• iron_acetate,
• armor,
• iron_bed,
• egg,
• ferric_oxalate,
• boiler,
• fridge,
• personal_ornament,
• mica,
• wrought-iron_artillery,
• ferric_sulphate,
• tablecloth,
• ferric_hydrate,
• small_sickle,
• plow,
• candlestick,
• lead,
• greensand_filter,
• scythe,
• nut,
• axe,
• sodium,
• agricultural_tool,
• bedstead,
• bolt,
• old_tool,
• small_tool,
• ax,
• oxalate,
• albert_memorial,
• miscellaneous_cast,
• magnetite,
• ferrous_hydroxide,
• chisel_figure,
• carbonate,
• peridotite,
• gates,