🇬🇧 Seal meaning: English Vocabulary Flash Card

To seal means to close something so it stays shut, usually by pressing or sticking the edges together. People often seal envelopes by licking or peeling the sticky part and pressing it down so the letter can’t slide out. You can also seal a box with tape so it doesn’t pop open while it’s being carried. When you seal something, you make sure it’s safely closed and not easy to open by accident.

The teacher asked who could neatly seal a letter; everyone stared at their tape-covered hands and said, “Not us.”

I used invisible tape to seal the box, so now no one, including me, can find where it opens.

I used so much tape to seal the box that it now looks like a shiny plastic brick.

The tape was supposed to seal the package, but mostly it just sealed my fingers together.

Some people long ago sealed letters with hot wax and a metal stamp, like a tiny lava pancake that says, “Do not open this!”

She folds a damp note and slips it into a small tin. She wants to seal the paper to keep the rain out and to seal her promise. She pours wax to seal the lid, taps to seal it, and presses hard to seal the join. She breathes, watches the sky, and smiles.

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.