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seal - Master This Word

Master this word with our 5-step learning method – Learn English in English

seal Word Meanings

  • a marine mammal with flippers
  • a symbol of authenticity or closure
  • to close securely
Illustration for this word

seal Example Sentences

Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.

seal Phonetic & Pronunciation

Pronunciation
UK /siːl/
US /siːl/
Syllables
seal

seal Word Etymology

seal = sǣl (sea) + 'sælan' (to fasten). Originated from Old English → Middle English → Modern English. Imagine a seal lounging on a rock while using its flippers to seal a box of fish, showing both its marine nature and the act of sealing.

Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.

Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.

Read the FAQ explanation of Comprehensible Input

English Brain Route

I reach for the jar, set my palm on the lid, and start to move it clockwise. I push and twist, the threads catch, and I adjust my grip to keep control. When the lid finally sits tight and the seal feels solid, I breathe out and hold for a moment. That small push and hold becomes proof of closure, a quiet seal that says 'done' and sticks in the mind.

Real Context

Seal is a word with two broad families of meaning. As a noun, it can refer to the marine mammal with flippers, often seen resting on rocks or ice, or to a device or mark that authenticates or closes something, such as a wax seal on a letter or an official seal on a document. As a verb, seal means to close securely or to certify something, for example to seal a bottle, seal a jar, or seal a contract. In idiomatic use, a seal of approval signals acceptance. The word comes from Old English sǣl, related to fasten, with a sense of securing or joining.

Usage Reminders

  • Pronounce seal with a long e sound: /siːl/.
  • Seal as a noun refers to the animal or to an authentication mark; use the right sense from context.
  • Use 'seal a deal' for finalizing an agreement, not 'seal a bottle' in the wrong sense.
  • Avoid confusing seal with sealant. Sealant is a different word.
  • Common collocations include seal a jar, seal a letter, seal of approval, wax seal.

Common Misconceptions

  • Seal as a verb is only about closing loosely; it actually means to close securely or certify.
  • Wax seals are obsolete in everyday life; many contexts use modern seals or digital seals.
  • Seal does not relate to sealant; a sealant is a different word.
  • The animal seal and the sea lion are the same; they are distinct creatures.
  • Seal a deal is purely legal; it often implies finalizing a relationship, not just signing.

Thinking Differences

English learners must track seal as both an animal and an action. The phrase seal a deal is common, but not every 'seal' is a physical closure; context matters to pick the right sense.

Learning Tips

  • Learn the animal sense separately from the sealing sense.
  • Practice phrases: seal a bottle, seal a letter, seal a deal.
  • Differentiate seal from sealant and from sign or certify.
  • Use flashcards pairing seal with both senses.
  • Listen for collocations like wax seal, seal of approval.
  • Read legal/official texts to see formal uses.

5-Step Learning Method - Learn English in English

Step 1: Meaning

What is the meaning of the word 'seal'?

A.A stamp for documents
B.A marine animal
C.A type of bird
D.A musical instrument
Step 2: Usage

Which sentence uses 'seal' correctly?

A.She spotted a seal basking in the sun.
B.I need to seal the envelope before sending.
C.He played a seal during the concert.
D.The seal flew gracefully in the sky.
Step 3: Similar Words

Which is a synonym for 'seal'?

A.Open
B.Secure
C.Loose
D.Break
Step 4: Opposite Words

In what real-world situation would you use the word 'seal'?

A.In a library
B.At the gym
C.At the post office
D.At the beach
Step 5: Mastery

Can you think of a sentence using the word 'seal'?

A.I sealed the deal with a handshake.
B.Seal the package with tape.
C.The seal animal swam gracefully.
D.The seal bird sang a beautiful song.

Related Listening

🔥 Advanced

🔥 Advanced
Packaging Engineer Interview: Sealing Freshness

Job Interview

2025.11.16 · 1:23 · B2 · IELTS · Dialogue
Listen Now

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