B1 Noun (plural) / Verb (3rd person singular) #45 mais comum 4 min de leitura

seals

The word seals can be used in a couple of ways. First, it can mean a type of marine animal that lives both on land and in water and has flippers. For example, you might see seals swimming in the ocean or resting on rocks.

Secondly, "seals" can refer to things that join two parts together to prevent air or liquid from escaping, like the seals on a jar. It can also mean an official mark used to prove something is real, like a seal on an important document. So, depending on the situation, "seals" could be animals, a way to close something tightly, or an official stamp.

The word "seals" operates as both a plural noun and a third-person singular verb, with distinct meanings that can be easily understood within context. As a plural noun, "seals" refers to a group of marine mammals distinguished by their flippers and their adaptable lifestyle, inhabiting both aquatic and terrestrial environments.

Beyond the animal kingdom, "seals" also functions as a noun to describe various mechanisms or materials designed to secure connections, preventing the egress of gases or fluids. This can range from simple gaskets to more complex hermetic closures.

Additionally, the term encompasses official emblems or stamps, often imprinted onto documents or objects to signify authenticity, approval, or a binding agreement, much like a wax seal on a legal decree.

As a verb, in its third-person singular form, "seals" denotes the act of closing or fastening something securely, ensuring its containment or protection, such as when one "seals" a letter or a container.

§ Introduction to 'Seals'

The word 'seals' is a fascinating example of how a single term in English can carry multiple, distinct meanings depending on its context. Classified at a CEFR B1 level, it's a word that learners will frequently encounter, both in its biological sense and in its more practical applications. Understanding these different uses is key to mastering the nuances of English vocabulary. We'll explore 'seals' as both a plural noun referring to an animal and as a verb in its third-person singular form, covering its various interpretations and when to use them.

§ 'Seals' as Marine Mammals (Noun, Plural)

One of the most common understandings of 'seals' refers to a group of semi-aquatic marine mammals. These animals are renowned for their sleek bodies, specialized flippers, and their ability to thrive in both aquatic and terrestrial environments. They are often found in cold waters, feeding on fish and squid, and are a vital part of marine ecosystems.

DEFINITION
Seals are fin-footed marine mammals with a streamlined body and blubber, well-adapted to living in the sea and on land.

Many seals can be seen basking in the sun on the rocks near the coast.

The Arctic expedition aimed to study the migratory patterns of various seals.

§ 'Seals' as a Fastening or Closure (Noun, Plural)

Beyond the animal kingdom, 'seals' also refers to devices or substances designed to join two things together, often to prevent the escape of air, liquid, or other contents. These can range from a simple rubber ring to advanced industrial compounds.

DEFINITION
Seals are materials or devices used to close an opening or to prevent leakage or entry, creating a barrier.

The mechanic checked all the engine seals for any signs of wear and tear.

New window seals were installed to improve the house's energy efficiency.

§ 'Seals' as Official Marks (Noun, Plural)

Another significant meaning of 'seals' relates to official stamps or emblems used for authentication, confirmation, or to signify authority. These can be physical wax seals on documents or printed symbols.

DEFINITION
Seals are impressions, stamps, or marks used to authenticate documents, show approval, or secure something.

The ancient scrolls were protected by elaborate wax seals.

Official government documents often bear multiple seals for verification.

§ 'Seals' as a Verb (3rd Person Singular)

Moving from noun to verb, 'seals' in its third-person singular form means to close or fasten something securely, or to confirm or finalize something. This usage is common in everyday language and more formal contexts alike.

DEFINITION
To seal (third-person singular 'seals') means to close or fasten tightly to prevent passage, or to confirm or conclude something definitively.

The envelope seals perfectly, keeping the contents safe.

Her signature seals the deal, making the contract official.

§ Key Takeaways for Using 'Seals'

  • Context is King: The primary determinant of 'seals'' meaning is the context in which it is used. Always consider the surrounding words and the overall topic.
  • Part of Speech: Differentiate between 'seals' as a plural noun (animals, fastenings, marks) and 'seals' as a third-person singular verb.
  • Visual Cues: When reading, look for clues. Are you in a nature documentary (animals)? A DIY manual (fastenings)? A historical text (official marks)? Or an action being performed (verb)?

By keeping these distinctions in mind, you'll be able to confidently understand and use the word 'seals' in its various forms and meanings, enhancing your comprehension and expression in English.

Gramática essencial

Nouns that end in -s, -x, -ch, -sh, or -z form their plural by adding -es. However, seals ends in -l, so it follows the regular pluralization rule of adding just -s.

One seal, many seals.

When 'seal' is used as a verb in the third person singular (he, she, it), an -s is added to the base form.

He seals the letter with a wax stamp.

The verb 'to seal' can be used transitively, meaning it takes a direct object.

The worker seals the package securely.

The verb 'to seal' can also be used intransitively, meaning it does not take a direct object, often implying a state or action of closing itself.

The jar seals tightly.

When referring to the animal, 'seals' as a plural noun can be followed by a plural verb.

Seals are excellent swimmers.

Exemplos por nível

1

I saw seals swim in the ocean.

Vi focas nadando no oceano.

Here 'seals' is a plural noun, referring to the animal.

2

The boat has a good seal.

O barco tem uma boa vedação.

Here 'seal' is a singular noun, referring to a device that prevents leakage.

3

He seals the box with tape.

Ele sela a caixa com fita.

Here 'seals' is a verb, meaning to close or fasten something securely.

4

The letter has a red seal.

A carta tem um selo vermelho.

Here 'seal' is a singular noun, referring to an official stamp.

5

Seals like to play in the water.

Focas gostam de brincar na água.

Here 'seals' is a plural noun, referring to the animal.

6

The lid seals tightly.

A tampa veda firmemente.

Here 'seals' is a verb, meaning to close securely.

7

He seals the envelope.

Ele sela o envelope.

Here 'seals' is a verb, meaning to close securely.

8

Look at the cute seals!

Olhe as focas fofas!

Here 'seals' is a plural noun, referring to the animal.

Colocações comuns

colony of seals Colonia de focas
ring seals Focas anilladas
harbor seals Focas comunes
sealskin coat Abrigo de piel de foca
wax seals Sellos de cera
official seals Sellos oficiales
breaks the seal Rompe el sello
airtight seals Sellos herméticos
rubber seals Sellos de goma
hydraulic seals Sellos hidráulicos

Frases Comuns

seals in the flavor

Sella el sabor

seals its fate

Sella su destino

seals the deal

Cierra el trato

seals the envelope

Sella el sobre

seals off the area

Aísla la zona

seals the victory

Sella la victoria

the debate seals

El debate se sella

seals of approval

Sellos de aprobación

seals their commitment

Sella su compromiso

seals the jar

Sella el frasco

Padrões gramaticais

Noun (plural) usage with 'are' Noun (plural) usage as a subject of a sentence Noun (plural) usage in a prepositional phrase Verb (3rd person singular) in simple present tense Verb (3rd person singular) followed by a direct object Verb (3rd person singular) followed by a prepositional phrase

Padrões de frases

B1

As a noun (plural): Seals are common in [region/habitat].

Seals are common in Arctic waters.

B1

As a noun (plural): Many types of seals live in the [ocean/sea].

Many types of seals live in the Pacific Ocean.

B1

As a noun (plural): The conservation of seals is important.

The conservation of seals is important for marine ecosystems.

B1

As a noun (plural): [Action verb] to protect seals.

We need to work together to protect seals.

B1

As a verb (3rd person singular): He seals the [object/container] tightly.

He seals the jar tightly to keep the food fresh.

B1

As a verb (3rd person singular): The company seals each [item/package] before shipping.

The company seals each package before shipping it to customers.

B1

As a verb (3rd person singular): This material seals against [substance].

This material seals against moisture effectively.

B1

As a verb (3rd person singular): The document seals the [agreement/deal].

The document seals the agreement between the two parties.

Dicas

Contextual Learning

Always try to learn new words in context. For 'seals,' think about sentences like 'The seals basked in the sun' or 'The document had an official seal.'

Pronunciation Practice

Practice saying 'seals' out loud. Pay attention to the 's' sound at the end. You can use online dictionaries that provide audio pronunciation.

Visual Association

When you think of 'seals' (animals), try to visualize them. For 'seals' (devices), imagine a wax seal on a letter or a rubber seal on a container.

Sentence Building

Create your own sentences using both meanings of 'seals.' For example, 'The mechanic used a new seal to fix the leak, while the seals in the arctic hunted for fish.'

Etymology Check

Sometimes understanding the origin of a word can help. While 'seal' has different origins for its different meanings, knowing this can highlight why they sound the same.

Synonyms and Antonyms

For 'seals' (animals), a synonym might be 'pinnipeds.' For 'seals' (to close), a synonym could be 'fasten' or 'close.' An antonym might be 'open' or 'unseal.' Exploring these helps build your vocabulary network.

Grammar Note

Remember that 'seals' can be a plural noun (the animals) or a verb in the third person singular (e.g., 'he seals the envelope'). Pay attention to its function in a sentence.

Flashcards

Create flashcards with 'seals' on one side and its definitions and example sentences on the other. Include images for better recall.

Read Widely

Encounter 'seals' in different contexts by reading diverse materials like articles about marine life or historical documents. This reinforces understanding.

Teach Someone Else

Try to explain the different meanings of 'seals' to someone else. Teaching is a great way to solidify your own understanding and recall.

Pratique na vida real

Contextos reais

When discussing marine life, seals are often mentioned as fascinating creatures.

  • Harbor seals are common along the coast.
  • Many types of seals migrate long distances.
  • Seals are excellent swimmers.

In engineering or construction, seals are crucial for preventing leaks.

  • The mechanic replaced the faulty seal.
  • Ensure the seal is watertight.
  • Rubber seals are often used in plumbing.

For official documents, seals add a layer of authenticity.

  • The document bears the official seal.
  • A notary public can affix their seal.
  • The wax seal indicated its importance.

Observing animals in their natural habitat, particularly seals, can be a memorable experience.

  • We saw a colony of seals basking on the rocks.
  • The seal pups were adorable.
  • Their loud barks echoed across the water.

When describing actions, 'seals' can mean to close or secure something tightly.

  • She seals the envelope with a kiss.
  • He seals the deal with a handshake.
  • The pot seals in the flavor.

Iniciadores de conversa

"Have you ever seen seals in the wild? Where was it?"

"What are some common uses for seals in everyday objects?"

"Do you know of any historical documents that are famous for their seals?"

"What's your favorite fact about seals as marine animals?"

"Can you think of a time when a good seal was really important, like to prevent a leak?"

Temas para diário

Describe a hypothetical scenario where the presence or absence of a seal (as a device) completely changes the outcome.

Imagine you are a marine biologist studying seals. Write about a day in your life.

Reflect on the idea of 'sealing' a promise or an agreement. What does that mean to you?

If you could design a new type of seal (the device), what problem would it solve and how?

Write a short story from the perspective of a seal, detailing its daily life and encounters in the ocean.

Perguntas frequentes

10 perguntas

A seal can refer to several things. Most commonly, it's a marine mammal known for its flippers. It can also be a device to join things, prevent leaks, or an official stamp for authentication.

The word seal has multiple meanings: it can be a marine animal, a device used to close or secure something tightly, or a mark used to officially validate something.

Certainly! An example of a seal as an animal is the common harbor seal, often seen resting on rocks near coastal areas.

When talking about preventing leaks, 'to seal' means to close an opening tightly, like using a rubber seal around a window to keep out drafts, or sealing an envelope.

To 'seal a deal' means to finalize an agreement or negotiation, often by signing documents or shaking hands, making it official and binding.

That's a great question! 'Seal' can be both a noun and a verb. As a noun, it refers to the animal or the device. As a verb, it means to close or fasten something securely.

The plural of 'seal' when referring to the animal is simply 'seals'. For example, 'We saw many seals basking in the sun.'

An 'official seal' is typically a stamp or an emblem used to authenticate documents or confirm their validity, often used by governments or organizations.

Yes, there are many different types of seals! Some common ones include harbor seals, gray seals, elephant seals, and harp seals, each with unique characteristics.

A seal (the device) works by creating a tight barrier between two surfaces or around an opening, preventing the passage of air, liquid, or other substances. Think of a rubber seal on a food container.

Teste-se 48 perguntas

writing A1

Write a short sentence about an animal that swims.

Well written! Good try! Check the sample answer below.

Sample answer

The fish swims in the water.

Correto! Quase. Resposta certa:
writing A1

Write a simple sentence using the word 'water'.

Well written! Good try! Check the sample answer below.

Sample answer

I drink water.

Correto! Quase. Resposta certa:
writing A1

Write one word for something that keeps things closed.

Well written! Good try! Check the sample answer below.

Sample answer

Seal.

Correto! Quase. Resposta certa:
reading A1

What do seals eat?

Read this passage:

Seals are animals that live in the ocean. They can swim very well. Seals like to eat fish. Baby seals are called pups.

What do seals eat?

Correto! Quase. Resposta certa: fish

The passage says, 'Seals like to eat fish.'

Correto! Quase. Resposta certa: fish

The passage says, 'Seals like to eat fish.'

reading A1

Where can a seal live?

Read this passage:

This is a seal. It has flippers. A seal can live on land and in the water. It is a marine animal.

Where can a seal live?

Correto! Quase. Resposta certa: on land and in water

The passage states, 'A seal can live on land and in the water.'

Correto! Quase. Resposta certa: on land and in water

The passage states, 'A seal can live on land and in the water.'

reading A1

What does 'seals' mean in this passage?

Read this passage:

My toy box has a lid that seals. This means no air can get in. It keeps my toys safe and clean.

What does 'seals' mean in this passage?

Correto! Quase. Resposta certa: to keep air out

The passage says, 'My toy box has a lid that seals. This means no air can get in.'

Correto! Quase. Resposta certa: to keep air out

The passage says, 'My toy box has a lid that seals. This means no air can get in.'

sentence order A1

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: The seal swims in the sea.

This sentence describes a seal swimming.

sentence order A1

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: I see a big seal.

This sentence describes seeing a seal.

sentence order A1

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: The door has a seal.

This sentence refers to a seal on a door, likely a weather seal.

multiple choice A2

Which animal lives in the sea and on land?

Correto! Quase. Resposta certa: A seal

Seals are known for their ability to live both on land and in water.

multiple choice A2

What do people use to close a jar tightly?

Correto! Quase. Resposta certa: A seal

A seal can be a device or substance used to join two things together or prevent air or liquid from escaping.

multiple choice A2

What is another name for a stamp used to show something is real?

Correto! Quase. Resposta certa: A seal

An official stamp used for authentication is also called a seal.

true false A2

Seals can swim in the ocean.

Correto! Quase. Resposta certa: Verdadeiro

Seals are semi-aquatic marine mammals, meaning they live in water.

true false A2

You can use a seal to stop water from leaking.

Correto! Quase. Resposta certa: Verdadeiro

A seal can prevent the escape of air or liquid.

true false A2

A seal is always a large animal.

Correto! Quase. Resposta certa: Falso

The word 'seal' also refers to devices or substances, which are not animals.

writing A2

Imagine you are at the zoo and you see some seals. Describe what they are doing in two sentences.

Well written! Good try! Check the sample answer below.

Sample answer

I saw seals swimming in the big pool. They were playing with a ball.

Correto! Quase. Resposta certa:
writing A2

Think about something that needs to be sealed to keep air out, like a food container. In one or two sentences, explain why it's important to seal it.

Well written! Good try! Check the sample answer below.

Sample answer

We need to seal the food container so the air does not get in. This keeps the food fresh.

Correto! Quase. Resposta certa:
writing A2

Write a short sentence about what a 'seal' can do when it's an animal.

Well written! Good try! Check the sample answer below.

Sample answer

A seal can swim very well and also rest on land.

Correto! Quase. Resposta certa:
reading A2

What are baby seals called?

Read this passage:

Seals are very interesting animals. They can live in cold water and have thick fur to keep warm. Baby seals are called pups. They learn to swim very quickly. Many people like to watch seals at the beach.

What are baby seals called?

Correto! Quase. Resposta certa: pups

The passage states that 'Baby seals are called pups.'

Correto! Quase. Resposta certa: pups

The passage states that 'Baby seals are called pups.'

reading A2

What is the purpose of a seal on a letter?

Read this passage:

When you send an important letter, sometimes you put a special sticker or wax on the envelope. This is called a seal. It shows that the letter has not been opened and is still private. Kings and queens used to use big wax seals on their letters.

What is the purpose of a seal on a letter?

Correto! Quase. Resposta certa: To show it has not been opened

The passage says, 'It shows that the letter has not been opened and is still private.'

Correto! Quase. Resposta certa: To show it has not been opened

The passage says, 'It shows that the letter has not been opened and is still private.'

reading A2

What did the dad do to the bicycle tire?

Read this passage:

My bicycle tire had a small hole. Air was coming out, so I couldn't ride it. My dad used a special patch to 'seal' the hole. Now the tire is good again, and I can ride my bike.

What did the dad do to the bicycle tire?

Correto! Quase. Resposta certa: He sealed the hole.

The passage states, 'My dad used a special patch to 'seal' the hole.'

Correto! Quase. Resposta certa: He sealed the hole.

The passage states, 'My dad used a special patch to 'seal' the hole.'

multiple choice B1

Which of these animals is known for living both on land and in water?

Correto! Quase. Resposta certa: B. Seal

Seals are semi-aquatic marine mammals, meaning they can live both on land and in water.

multiple choice B1

What is one purpose of a 'seal' in a technical context?

Correto! Quase. Resposta certa: B. To prevent air or liquid from escaping

A seal can refer to a device or substance used to join two things together or prevent the escape of air or liquid.

multiple choice B1

If a document has an 'official seal', what does that typically mean?

Correto! Quase. Resposta certa: B. It is used for authentication.

An official seal is an official stamp used for authentication, meaning it proves the document is real or valid.

true false B1

Seals are known for their ability to fly.

Correto! Quase. Resposta certa: Falso

Seals are known for their flippers and ability to live on land and in water, not for flying.

true false B1

A 'seal' can be used to make sure a container is airtight.

Correto! Quase. Resposta certa: Verdadeiro

Yes, a seal is often used to prevent the escape of air or liquid, making a container airtight.

true false B1

The term 'seals' only refers to animals.

Correto! Quase. Resposta certa: Falso

No, 'seals' can also refer to devices or substances for joining things, or official stamps.

sentence order B2

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: The marine biologist observed the seals basking in the sun.

This sentence describes the action of a marine biologist observing seals.

sentence order B2

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: To prevent leaks, engineers applied special seals to the pipes.

This sentence describes the use of seals to prevent leaks in pipes.

sentence order B2

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: The document's authenticity was confirmed by the official seals affixed to it.

This sentence explains how official seals confirm the authenticity of a document.

multiple choice C2

The ambassador's signature on the treaty served as a final acknowledgment of its legitimacy, effectively placing the government's official ___ on the agreement.

Correto! Quase. Resposta certa: seal

In this context, 'seal' refers to an official stamp used for authentication, signifying the government's formal approval and legitimacy.

multiple choice C2

Despite the harsh Arctic conditions, the intrepid researchers observed several species of marine mammals, including numerous ___ basking on the ice floes.

Correto! Quase. Resposta certa: seals

'Seals' are semi-aquatic marine mammals known for basking on ice floes, making them the most appropriate choice in this wildlife observation context.

multiple choice C2

To prevent any leakage of hazardous chemicals, the engineers meticulously applied robust ___ to all pipe joints, ensuring the integrity of the containment system.

Correto! Quase. Resposta certa: seals

Here, 'seals' refers to devices or substances used to join two things together or prevent the escape of air or liquid, which is crucial for preventing chemical leakage.

true false C2

The term 'seals' can refer to both aquatic animals and objects used for securing or authenticating.

Correto! Quase. Resposta certa: Verdadeiro

The definition explicitly states that 'seals' refers to marine mammals as well as devices or substances for joining or authenticating.

true false C2

All seals are exclusively terrestrial animals, spending their entire lives on land.

Correto! Quase. Resposta certa: Falso

The definition clearly states that seals are 'semi-aquatic marine mammals,' indicating they live both on land and in water, not exclusively on land.

true false C2

A 'seal' used in a legal context is typically an informal mark of approval.

Correto! Quase. Resposta certa: Falso

The definition specifies that seals are 'official stamps used for authentication,' implying a formal rather than informal mark of approval in legal contexts.

sentence order C2

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: The authentication of governmental seals is imperative to ensure the integrity of the documents.

This sentence discusses the critical role of official seals in verifying the authenticity and integrity of government documents, fitting a C2 level of complexity and vocabulary.

sentence order C2

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: The mechanic meticulously applied new seals to prevent the engine's oil leak.

This sentence uses 'seals' in the context of preventing leakage, combined with 'meticulously applied,' indicating a higher level of precision and vocabulary suitable for C2.

sentence order C2

Toque nas palavras abaixo para montar a frase
Correto! Quase. Resposta certa: Seals play a critical role in maintaining complex marine ecosystems.

This sentence uses 'seals' as marine mammals and discusses their ecological importance, using sophisticated terms like 'critical role' and 'complex marine ecosystems,' appropriate for C2.

/ 48 correct

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