Browse Lemmas

61 lemmas found

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cloud

A visible mass of tiny water droplets or ice crystals suspended in the atmosphere, typically forming various shapes and often producing precipitation.

noun natural_feature Level 14
fog

A thick cloud of tiny water droplets suspended in the air near the ground that reduces visibility.

noun natural_feature Level 14
ice

Frozen water; a solid form of water produced when temperature falls below 0°C (32°F), often appearing as clear or opaque solid, used for cooling or fo...

noun natural_feature Level 14
moon

A natural satellite orbiting a planet, such as Earth's moon.

noun natural_feature Level 14
rain

Water that falls from clouds in drops; precipitation in the form of liquid water.

noun natural_feature Level 14
sky

The region of the atmosphere and outer space that appears as a dome over the Earth, seen as the area where clouds, the sun, moon, and stars appear.

noun natural_feature Level 14
snow

Frozen crystalline precipitation that falls from clouds as white flakes, forming a layer on the ground when temperatures are low.

noun natural_feature Level 14
star

a luminous celestial body made of plasma that generates energy through nuclear fusion and appears as a point of light in the night sky; any such objec...

noun natural_feature Level 14
storm

a violent weather event characterized by strong winds, often with rain, snow, thunder, or lightning

noun natural_feature Level 14
sun

The star at the center of the Solar System that provides light and heat to Earth and around which the planets orbit.

noun natural_feature Level 14
temperature

A measure of how hot or cold something is, typically determined by a thermometer and expressed in degrees on a standard scale (such as Celsius or Fahr...

noun natural_feature Level 14
wind

a natural movement of air, especially a perceptible breeze or a flow of air produced by atmospheric pressure differences

noun natural_feature Level 14
beach

A shore of a body of water, especially a sandy or pebbly area by the sea or a lake where people can walk, sunbathe, or swim.

noun natural_feature Level 18
canyon

a deep, narrow valley with steep, often rocky sides, usually carved by a river

noun natural_feature Level 18
cave

a natural underground hollow or chamber in rock, typically large enough for a human to enter

noun natural_feature Level 18
cliff

a steep rock face, especially at the edge of the sea or a mountain

noun natural_feature Level 18
coast

The land along the edge of the sea; the coastline or shore.

noun natural_feature Level 18
desert

a large area of land that receives very little precipitation and has sparse vegetation, typically characterized by sand or rock and extreme temperatur...

noun natural_feature Level 18
forecast

a prediction or estimate of future events, especially of weather or economic conditions

noun natural_feature Level 18
glacier

A large, slow-moving mass of ice formed from compacted snow that flows downhill or spreads outward under its own weight, often shaping the landscape b...

noun natural_feature Level 18
hill

a naturally raised area of land, smaller than a mountain, often with a rounded summit

noun natural_feature Level 18
island

A piece of land completely surrounded by water and smaller than a continent.

noun natural_feature Level 18
lake

a large body of fresh or salt water surrounded by land

noun natural_feature Level 18
mountain

a large natural elevation of the Earth's surface rising abruptly from the surrounding level; a large steep hill, usually higher and steeper than a hil...

noun natural_feature Level 18
ocean

A vast body of salt water that covers most of the Earth's surface and is divided into major areas such as the Atlantic, Pacific, Indian, Arctic, and S...

noun natural_feature Level 18
peninsula

A piece of land that is surrounded by water on three sides and connected to a larger landmass on the remaining side.

noun natural_feature Level 18
river

a naturally flowing body of water, usually freshwater, that moves along a channel from higher to lower elevations and empties into another body of wat...

noun natural_feature Level 18
sea

A large body of salt water that covers most of the Earth's surface and is partly enclosed by land; one of the principal divisions of the ocean.

noun natural_feature Level 18
volcano

A mountain or hill with a crater or vent through which molten rock, ash, and gases are or have been erupted from the Earth's crust.

noun natural_feature Level 18
waterfall

a steep descent of a river or stream, where water falls from a height over rocks or a cliff

noun natural_feature Level 18
current

a steady flow of water, air, or electricity in a particular direction.

noun natural_feature Level 19
harbor

a sheltered body of water where ships may anchor safely.

noun natural_feature Level 19
dune

a mound of sand formed by the wind.

noun natural_feature Level 27
hole

a hollow place in a solid surface.

noun natural_feature Level 27
pond

a small body of still water.

noun natural_feature Level 27
riverbed

the bottom of a river channel.

noun natural_feature Level 27
sunset

the time when the sun disappears below the horizon.

noun natural_feature Level 27
bank

the land alongside or sloping down to a river or lake

noun natural_feature Level 30
ditch

a narrow channel dug in the ground

noun natural_feature Level 30
earth

the planet we live on; the third planet from the Sun

noun natural_feature Level 30
field

an area of open land, especially one used for cultivation or pasture

noun natural_feature Level 30
fire

combustion producing heat and light

noun natural_feature Level 30
flame

a hot glowing body of burning gas

noun natural_feature Level 30
ground

the solid surface of the earth; soil or earth

noun natural_feature Level 30
mist

a cloud of tiny water droplets in the air

noun natural_feature Level 30
path

a way or track laid down for walking or made by continual treading

noun natural_feature Level 30
planet

a celestial body moving in an elliptical orbit around a star; the Earth.

noun natural_feature Level 30
plateau

An elevated and flat piece of land that is substantially higher than the surrounding terrain

noun natural_feature Level 30
rock

a large natural mass of stone forming a hill, cliff, or promontory

noun natural_feature Level 30
shore

the land along the edge of a sea, lake, or other large body of water

noun natural_feature Level 30