Browse Lemmas

Lemmas found: 65

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air

the invisible mixture of gases surrounding the earth

Noun material_substance Level 23
glass

a hard, brittle, typically transparent material made by fusing silica with soda, lime, and other substances and cooling rapidly; used for windows, bot...

Noun material_substance Level 23
iron

a strong, hard, silvery-gray metal (chemical element Fe) used widely in construction and manufacturing; also, an alloy of iron and carbon such as stee...

Noun material_substance Level 23
metal

a class of solid materials, typically hard, lustrous, malleable, and conductive of heat and electricity, including elements such as iron, copper, and ...

Noun material_substance Level 23
oil

A viscous liquid derived from petroleum or from plant or animal sources.

Noun material_substance Level 23
chemical

a substance obtained by or used in a chemical process.

Noun material_substance Level 36
gold

a dense, soft, yellow precious metal (chemical element gold, symbol Au, atomic number 79) used for jewelry, currency, and electronics; also any gold-c...

Noun material_substance Level 36
paint

a colored substance spread over a surface to decorate or protect it.

Noun material_substance Level 36
stone

a hard, solid nonmetallic mineral substance of which rock is made, typically composed of one or more minerals

Noun material_substance Level 36
wood

The hard fibrous material that makes up the trunk and branches of trees, used for construction, fuel, and making objects.

Noun material_substance Level 36
board

a long thin flat piece of wood

Noun material_substance Level 37
brass

a yellowish alloy of copper and zinc, used for decorative objects, musical instruments, plumbing fittings, and other applications

Noun material_substance Level 37
brick

a rectangular block of clay or other material, typically hardened by heat, used in building walls and other structures

Noun material_substance Level 37
cardboard

A stiff, thick paper material made by compressing layers of paper pulp, used for making boxes, cartons, and other packaging, and for backing and mount...

Noun material_substance Level 37
chalk

a soft, white, porous sedimentary rock composed of calcium carbonate, or a similar substance used for writing on blackboards and drawing

Noun material_substance Level 37
clay

A natural earthy material composed mainly of fine-grained minerals (such as hydrous aluminum silicates) that becomes plastic when wet and hardens when...

Noun material_substance Level 37
cloth

A material made by weaving, knitting, or bonding fibers together, used for making clothing, linens, and other textiles.

Noun material_substance Level 37
coal

a hard, black sedimentary rock formed from ancient plant matter, burned as fuel for heat and electricity generation

Noun material_substance Level 37
concrete

a building material made from a mixture of cement, water, sand, and aggregate that hardens into a solid, stone-like mass

Noun material_substance Level 37
copper

a reddish-brown metallic chemical element (symbol Cu) used as a conductor of electricity and heat, in wiring, plumbing, and alloys such as bronze and ...

Noun material_substance Level 37
cotton

a soft, fluffy white fiber that grows around the seeds of cotton plants and is used to make textiles and other products

Noun material_substance Level 37
dust

fine dry powder consisting of tiny particles

Noun material_substance Level 37
fat

A natural oily or greasy substance occurring in animal bodies or in certain foods.

Noun material_substance Level 37
ink

a colored fluid or paste used for writing, drawing, or printing on paper and other surfaces

Noun material_substance Level 37
jelly

a semi-transparent soft solid made from gelatin or fruit juice.

Noun material_substance Level 37
lead

a heavy, soft, gray metallic element (symbol Pb)

Noun material_substance Level 37
leather

tough, flexible material made from the tanned hides of animals, typically used for clothing, footwear, furniture, and accessories

Noun material_substance Level 37
limestone

a hard sedimentary rock composed mainly of calcium carbonate, used as a building material and in the production of cement and lime

Noun material_substance Level 37
liquid

a substance that flows freely and has a definite volume but no fixed shape.

Noun material_substance Level 37
marble

A hard, fine-grained metamorphic rock, typically white or veined, used for sculpture and as a building material.

Noun material_substance Level 37
paste

a thick soft moist substance used for sticking things together or as a spread.

Noun material_substance Level 37
plaster

a soft paste made from lime, cement, sand, and water that hardens when dry, used for coating walls and ceilings or for making casts and molds

Noun material_substance Level 37
plastic

a synthetic material made from polymers that can be molded or shaped when soft and then set into a rigid or slightly flexible state; used to make a wi...

Noun material_substance Level 37
poison

a substance that causes harm or death

Noun material_substance Level 37
polish

a substance used to make a surface smooth and shiny.

Noun material_substance Level 37
powder

a dry substance in the form of fine particles.

Noun material_substance Level 37
rubber

a tough, elastic polymer material (natural or synthetic) used for making tires, seals, hoses, and elastic goods; (also) an object made from this mater...

Noun material_substance Level 37
sand

Fine granular particles of rock and mineral, typically composed of silica (quartz), that form beaches, dunes, and sedimentary deposits and feel gritty...

Noun material_substance Level 37
silk

A fine, strong fiber produced by silkworms and used to make a smooth, lustrous fabric; a fabric woven from this fiber.

Noun material_substance Level 37
silver

a lustrous, malleable, white metallic chemical element (Ag) used in coins, jewelry, and electrical conductors

Noun material_substance Level 37
smoke

visible vapor produced by burning

Noun material_substance Level 37
steam

the hot vapor into which water is converted when heated to boiling.

Noun material_substance Level 37
steel

A hard, strong alloy of iron and carbon (and often other elements) used for construction, tools, machinery, and other durable goods.

Noun material_substance Level 37
tin

a silvery-white metal

Noun material_substance Level 37
wax

a soft, moldable substance that is solid at room temperature and melts easily when heated, produced naturally by bees or synthetically from petroleum;...

Noun material_substance Level 37
wire

a thin flexible strand of metal

Noun material_substance Level 37
wool

the soft, curly hair or fleece of sheep and certain other animals, often spun into yarn and used to make textiles and clothing

Noun material_substance Level 37
aluminum

A silvery-white, lightweight metallic element (chemical symbol Al, atomic number 13) used in manufacturing, packaging, and construction for its corros...

Noun material_substance Level 38
asphalt

a dark, sticky, semi-solid form of petroleum used for surfacing roads, waterproofing, and roofing

Noun material_substance Level 38
bronze

a hard yellowish-brown alloy of copper and tin, used historically for tools, weapons, and sculptures

Noun material_substance Level 38