Meaning: A small, spiny sea creature found on the ocean floor.

Part of speech: noun

Example: The diver collected sea urchins for research.

Category: Nature › Marine Biology

Synonyms: echinoderm

Meaning: Water from the sea, which is salty.

Part of speech: noun

Example: The sea water was too salty for drinking.

Category: Nature

Synonyms: ocean water

Meaning: The bottom of the sea.

Part of speech: noun

Example: The seafloor is home to many unique creatures.

Category: Nature › Water

Synonyms:

• ocean floor
• sea bed

Meaning: A type of bird commonly found near the sea.

Part of speech: noun

Example: The seagull squawked as it flew overhead.

Category: Nature › Animals

Synonyms:

• gull
• bird

Meaning: A small marine fish with a horse-like head.

Part of speech: noun

Example: The seahorse is known for its unique shape.

Category: Nature › Marine Life

Synonyms: hippocampus

Meaning: A marine mammal that is known for its playful nature.

Part of speech: noun

Example: The seal basked on the rock in the sun.

Category: Nature › Marine Life

Synonyms:

• sea lion
• pinniped

Meaning: The hard outer covering of a marine mollusk.

Part of speech: noun

Example: She collected seashells along the beach.

Category: Nature › Marine Life

Synonyms:

• shell
• conch

Meaning: The land along the edge of the sea.

Part of speech: noun

Example: We walked along the seashore collecting shells.

Category: Nature

Synonyms:

• beach
• coast

Meaning: The area near the sea, especially a beach resort.

Part of speech: noun

Example: We spent our vacation at a seaside hotel.

Category: Nature

Synonyms:

• coast
• shore

Meaning: A period of the year characterized by particular conditions.

Part of speech: noun

Example: Winter is my favorite season.

Category: Nature

Synonyms:

• period
• time

Meaning: Occurring at certain times of the year.

Part of speech: adjective

Example: We enjoy seasonal fruits like strawberries in summer.

Category: Nature

Synonyms:

• periodic
• cyclical

Meaning: In the direction of the sea.

Part of speech: adverb

Example: The boat sailed seaward as the sun set.

Category: Nature

Synonyms: toward the sea

Meaning: A type of plant that grows in the sea.

Part of speech: noun

Example: We collected seaweed from the beach.

Category: Nature

Synonyms: algae

Meaning: Hidden or kept apart from others.

Part of speech: adjective

Example: They found a secluded spot for their picnic.

Category: Nature

Synonyms:

• isolated
• remote

Antonyms: exposed

Meaning: A type of grass-like plant found in wetlands.

Part of speech: noun

Example: The sedge grew abundantly near the pond.

Category: Nature › Botany

Synonyms: grass

Meaning: The part of a plant that can grow into a new plant.

Part of speech: noun

Example: I planted a seed in the garden.

Category: Nature › Botany

Synonyms:

• grain
• kernel

Meaning: Corn that is grown specifically for seed production.

Part of speech: noun

Example: Farmers select the best plants for seed corn.

Category: Nature › Agriculture

Synonyms: breeding corn

Meaning: A prepared area for growing seeds until they are ready to be transplanted.

Part of speech: noun

Example: The gardener prepared a seedbed for the new plants.

Category: Nature › Agriculture

Synonyms: nursery

Meaning: Having no seeds.

Part of speech: adjective

Example: I prefer seedless grapes for snacking.

Category: Nature › Botany

Synonyms: without seeds

Meaning: A young plant that has grown from a seed.

Part of speech: noun

Example: The seedling needs water and sunlight to grow.

Category: Nature › Botany

Synonyms: young plant

Meaning: calm and peaceful

Part of speech: adjective

Example: The lake was serene in the early morning.

Category: Nature › Landscapes

Synonyms: calm

Antonyms: chaotic

Meaning: A large snake.

Part of speech: noun

Example: The serpent slithered through the grass.

Category: Nature › Animals

Meaning: Having a winding or twisting form.

Part of speech: adjective

Example: The serpentine road made driving challenging.

Category: Nature › Geography

Meaning: A plant whose seeds are used for oil and flavoring.

Part of speech: noun

Example: Sesame seeds are often used in Asian cuisine.

Category: Nature › Plants

Meaning: A type of dog bred for hunting.

Part of speech: noun

Example: The setter retrieved the game from the field.

Category: Nature › Animals

Meaning: A type of bitter orange used in marmalade and cooking.

Part of speech: noun

Example: Seville oranges are popular for making marmalade.

Category: Nature › Fruits

Meaning: A slight darkness caused by the blocking of light.

Part of speech: noun

Example: She sat in the shade of a tree to avoid the sun.

Category: Nature › Light

Synonyms: shadow

Meaning: A dark shape produced by a body coming between rays of light and a surface.

Part of speech: noun

Example: The shadow of the tree stretched across the lawn.

Category: Nature › Light

Synonyms: shade

Meaning: Full of shadows; dark and unclear.

Part of speech: adjective

Example: The shadowy figure disappeared into the night.

Category: Nature › Light

Synonyms: dim

Meaning: Having long, unkempt hair or fur.

Part of speech: adjective

Example: The shaggy dog needed a haircut.

Category: Nature › Animals

Synonyms: unkempt

Meaning: Not deep; having little depth.

Part of speech: adjective

Example: The water is shallow near the shore.

Category: Nature › Water

Synonyms: superficial

Meaning: Areas of water that are not deep.

Part of speech: noun

Example: The children played in the shallows of the lake.

Category: Nature › Water

Synonyms: shallow water

Meaning: A three-leaved plant, often associated with Ireland.

Part of speech: noun

Example: The shamrock is a symbol of St. Patrick's Day.

Category: Nature › Botany

Synonyms:

• clover
• trefoil

Meaning: A large marine predator known for its sharp teeth.

Part of speech: noun

Example: The shark swam gracefully through the water.

Category: Nature › Marine Biology

Synonyms:

• predator
• fish

Meaning: A type of seabird known for its long wings and ability to glide over water.

Part of speech: noun

Example: The shear water flew gracefully above the waves.

Category: Nature › Birds

Synonyms:

• seabird
• bird

Meaning: A domesticated animal raised for wool, meat, or milk.

Part of speech: noun

Example: The sheep grazed in the field.

Category: Nature › Animals

Synonyms:

• lamb
• ewe

Meaning: A type of lightning that appears as a bright flash across the sky.

Part of speech: noun

Example: We saw sheet lightning during the storm.

Category: Nature › Weather

Synonyms:

• flash
• lightning

Meaning: A type of waterfowl found in Europe and Asia.

Part of speech: noun

Example: We spotted a shelduck swimming in the lake.

Category: Nature › Birds

Meaning: The hard outer covering of certain animals, like turtles or eggs.

Part of speech: noun

Example: The turtle hid inside its shell.

Category: Nature › Animals

Meaning: Resembling a shell in shape or appearance.

Part of speech: adjective

Example: The shell-like structure was fascinating to observe.

Category: Nature › Shapes