Meaning: A type of tree known for its white bark and trembling leaves.

Part of speech: noun

Example: The aspen trees are beautiful in the fall.

Category: Nature › Botany

Synonyms: poplar

Meaning: A type of houseplant known for its hardiness and ability to thrive in low light.

Part of speech: noun

Example: The aspidistra is often called the cast iron plant.

Category: Nature › Botany

Synonyms:

• houseplant
• foliage plant

Meaning: A domesticated animal related to the horse, often used as a pack animal.

Part of speech: noun

Example: The ass carried heavy loads up the mountain.

Category: Nature › Zoology

Synonyms:

• donkey
• burro

Meaning: A type of flowering plant.

Part of speech: noun

Example: The aster blooms in late summer.

Category: Nature › Botany

Synonyms:

• flower
• plant

Meaning: A ring-shaped coral reef, island, or series of islets.

Part of speech: noun

Example: The atoll is home to diverse marine life.

Category: Nature

Synonyms: coral island

Meaning: A type of seabird known for its diving ability.

Part of speech: noun

Example: The auk is often found in cold northern waters.

Category: Nature › Birds

Synonyms:

• bird
• seabird

Meaning: An extinct species of large wild cattle.

Part of speech: noun

Example: The aurochs once roamed across Europe.

Category: Nature › Animals

Synonyms:

• wild cattle
• bison

Meaning: The southern lights; a natural light display in the sky.

Part of speech: noun

Example: The aurora australis can be seen in Antarctica.

Category: Nature › Astronomy

Synonyms:

• southern lights
• aurora

Meaning: The northern lights; a natural light display in the sky.

Part of speech: noun

Example: The aurora borealis is visible in northern regions.

Category: Nature › Astronomy

Synonyms:

• northern lights
• aurora

Meaning: The season between summer and winter.

Part of speech: noun

Example: The leaves change color in autumn.

Category: Nature › Seasons

Meaning: Relating to autumn.

Part of speech: adjective

Example: The autumnal colors were beautiful in the park.

Category: Nature › Seasons

Meaning: A sudden and fast flow of snow down a mountain.

Part of speech: noun

Example: The avalanche blocked the road.

Category: Nature › Geology

Meaning: Relating to birds.

Part of speech: adjective

Example: The avian species in the area are diverse.

Category: Nature › Zoology

Meaning: A large enclosure for keeping birds.

Part of speech: noun

Example: The aviary at the zoo houses many exotic species.

Category: Nature › Zoology

Meaning: The breeding and care of birds.

Part of speech: noun

Example: Aviculture is a popular hobby among bird enthusiasts.

Category: Nature › Zoology

Meaning: A type of wading bird known for its long legs and curved bill.

Part of speech: noun

Example: The avocet was spotted near the wetlands.

Category: Nature › Birds

Meaning: Covered or flooded with water.

Part of speech: adjective

Example: The fields were awash after the rain.

Category: Nature › Water

Synonyms: flooded

Meaning: A type of flowering shrub.

Part of speech: noun

Example: The azalea blooms beautifully in spring.

Category: Nature › Plants

Synonyms: flowering shrub

Meaning: Bright blue in color, like the sky.

Part of speech: adjective

Example: The azure sky was clear and beautiful.

Category: Nature › Colors

Synonyms: blue

Meaning: The national bird of the United States, symbolizing freedom.

Part of speech: noun

Example: The American eagle is often seen on government seals.

Category: Nature › Wildlife

Synonyms: bald eagle

Meaning: The sound made by a sheep.

Part of speech: verb

Example: The sheep began to baa loudly.

Category: Nature › Animals

Meaning: A young lamb that makes the sound 'baa'.

Part of speech: noun

Example: The baa-lamb followed its mother closely.

Category: Nature › Animals

Meaning: A baby; often used in dialects.

Part of speech: noun

Example: Look at that cute babby in the stroller!

Category: Nature › Animals

Synonyms:

• infant
• newborn

Antonyms: adult

Meaning: A large monkey with a long face and strong jaws.

Part of speech: noun

Example: The baboon sat on the rock, watching the tourists.

Category: Nature › Animals

Synonyms: monkey

Meaning: A very young child or infant.

Part of speech: noun

Example: The baby slept peacefully in the crib.

Category: Nature › Humans

Synonyms:

• infant
• newborn

Antonyms: adult

Meaning: A part of a river or lake that is not flowing; stagnant water.

Part of speech: noun

Example: The fish prefer to stay in the back water where it's calm.

Category: Nature › Hydrology

Synonyms:

• stagnant water
• still water

Meaning: Water that flows back after a wave has broken.

Part of speech: noun

Example: The backwash from the waves soaked my feet.

Synonyms:

• reflux
• residue

Meaning: Food used to attract fish or animals for catching.

Part of speech: noun

Example: He used worms as bait for fishing.

Category: Nature › Fishing

Synonyms:

• lure
• enticement

Meaning: The act of luring or enticing someone or something.

Part of speech: noun

Example: The baiting of the trap was done carefully.

Category: Nature › Fishing

Synonyms:

• luring
• enticing

Meaning: A large bird of prey native to North America, known for its white head and tail.

Part of speech: noun

Example: The bald eagle is a symbol of freedom in the United States.

Category: Nature › Birds

Synonyms: Haliaeetus leucocephalus

Meaning: Mild and pleasant, often referring to weather.

Part of speech: adjective

Example: The balmy evening was perfect for a picnic.

Category: Nature › Weather

Synonyms:

• mild
• pleasant

Antonyms:

• harsh
• severe

Meaning: A tall grass with a hard, hollow stem, used in construction and crafts.

Part of speech: noun

Example: They built a fence out of bamboo.

Category: Nature › Plants

Synonyms:

• grass
• plant

Meaning: Having a band or bands.

Part of speech: adjective

Example: The -banded lizard is known for its distinctive appearance.

Category: Nature › Animals

Synonyms:

• striped
• banded

Meaning: Having bands or stripes.

Part of speech: adjective

Example: The banded snake was easy to identify.

Category: Nature › Animals

Synonyms:

• striped
• marked

Meaning: A type of bird found in wetlands, known for its distinctive call.

Part of speech: noun

Example: The Bandi coot is often seen near the lake.

Category: Nature › Birds

Synonyms:

• bird
• waterfowl

Meaning: A type of tree with aerial roots.

Part of speech: noun

Example: The banyan tree provides shade in the park.

Category: Nature › Botany

Synonyms: fig tree

Meaning: A large tree native to Africa, known for its thick trunk.

Part of speech: noun

Example: The baobab tree can live for thousands of years.

Category: Nature › Botany

Synonyms: monkey bread tree

Meaning: Without covering; exposed.

Part of speech: adjective

Example: The tree was bare in winter.

Category: Nature

Synonyms:

• naked
• exposed

Antonyms:

• covered
• clothed

Meaning: The outer covering of a tree.

Part of speech: noun

Example: The bark of the tree was rough and textured.

Category: Nature › Botany

Synonyms: cortex

Meaning: A large building for storing farm animals or equipment.

Part of speech: noun

Example: The cows were kept in the barn during the storm.

Category: Nature › Agriculture

Synonyms: shed