🇬🇧🇪🇸 beaver - castor : English Lesson

Meaning of "beaver" ("castor"), detailed definition, and a short video lesson below.

A beaver is a medium-sized animal that lives mostly in and around rivers, ponds, and lakes. It has smooth brown fur, very strong front teeth for chewing wood, and a big, flat tail that it uses like a paddle when it swims. Beavers are amazing builders. They chew down trees and branches and use mud and sticks to build dams that slow down the water and cozy homes called lodges, where they can sleep, stay safe, and raise their babies.

Watch and listen to this English flashcard to understand the word in more detail, with an easy example sentence.

A beaver would be the worst roommate because it might turn your bed into a dam.

The beaver stared at my wooden ruler like, “Are you food or furniture?”

The beaver applied for a construction job and wrote under skills: “Chewing, swimming, and building riverside mansions.”

When the beaver smiled, its teeth were so big I thought it was carrying two french fries in its mouth.

A beaver’s front teeth never stop growing, so it has to keep chewing wood—or it would need the world’s biggest toothbrush!

At dawn, a furry beaver chewed a sapling by the stream with big teeth. The beaver dragged branches, its wide, flat tail slapping the water. A young beaver carried mud while an older beaver stacked sticks to build a dam and a snug lodge. A silent beaver nodded, tail wet, and slipped into sleep.

This word is featured in some playlists to help boost your English vocabulary! Check out where “beaver” (castor) makes an appearance and dive into themed playlists that make learning fun. 👍

This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.

Expanding your English vocabulary is one of the best ways to improve your pronunciation, spelling, and confidence in English. Watch the video above to memorize the word, understand its meaning, and see example sentences in action. Discover related words to grow your vocabulary naturally. Add words to your playlist for stress-free, effective learning—anytime, anywhere! Watch, learn, repeat.