A1 noun #1,525 most common 3 min read

sister

A sister is a girl or woman who has the same parents as you.

Explanation at your level:

A sister is a girl in your family. She has the same mom and dad as you. If you have a sister, you are lucky! You can play games together and share your toys. If you have no sister, you might have a brother. A sister is a very special person in your life.

A sister is a female sibling. People use this word to talk about their family members. For example, you can say, 'My sister is older than me.' It is a very common word that you will hear in almost every conversation about family. You can also use it to talk about friends who are very close to you.

The word sister describes a female who shares parents with another person. Beyond family, it is often used to describe a strong bond between women, even if they are not related by blood. Using this word helps establish a sense of connection and shared history. It is a versatile noun that appears in both casual chats and more descriptive storytelling.

While sister primarily denotes a biological or adoptive sibling, its usage extends into figurative territory. In social contexts, it implies a sense of solidarity or shared identity, often referred to as 'sisterhood.' Understanding the nuance between a literal sister and a 'soul sister' allows for more expressive communication in English. It is a cornerstone of familial and social vocabulary.

In advanced English, sister is frequently employed in sociological or cultural contexts to denote collective identity, particularly within feminist discourse or religious institutions. The term 'sisterhood' transcends the domestic sphere, representing a political or spiritual alliance. Furthermore, literary usage often leverages the word to evoke themes of loyalty, rivalry, or deep-seated emotional intimacy, providing a rich layer of subtext to character relationships in prose and drama.

At the mastery level, sister functions as a multifaceted signifier. Beyond the biological, it encompasses the 'sister' as an archetype in mythology and literature—the guardian, the rival, or the mirror image. Etymologically, it connects to a vast web of Indo-European roots, reflecting the ancient importance of kinship structures. In academic or formal analysis, one might discuss 'sister organizations' or 'sister disciplines,' utilizing the term to denote structural parallels or historical commonalities between entities. This usage highlights the word's ability to describe not just people, but the nature of relationships between institutions and ideas themselves.

Word in 30 Seconds

  • A sister is a female sibling.
  • The term can be figurative.
  • It is a countable noun.
  • It is a very common family word.

Hey there! Let's talk about the word sister. At its core, a sister is a female sibling. This means she shares the same parents as you, or perhaps just one parent.

It is a word that carries a lot of warmth. While we often use it for family, we also use it to describe deep friendships. When women call each other 'sister,' they are highlighting a bond that feels just as close as family.

Think about your own life. Do you have a sister? If you do, you know that the relationship can be full of laughter, secrets, and sometimes even a little bit of playful fighting. It is one of the most important relationships a person can have in their lifetime.

The word sister has a really cool history! It comes from the Old Norse word systir and is related to the Old English sweostor. It is part of the Germanic language family, which is why you see similar words in languages like German (Schwester) and Dutch (zuster).

Interestingly, the word has roots that go all the way back to the Proto-Indo-European language. It is fascinating to think that people thousands of years ago were using a version of this word to describe the exact same family connection we use today.

Over centuries, the spelling shifted as English evolved, eventually settling into the word we recognize today. It has always been a word that centers on the idea of a 'female sibling'—a constant in human history!

You will hear sister used in many ways. In a casual setting, you might say, 'That's my sister!' to introduce a family member. It is very common and completely neutral in tone.

We also use it in specific collocations. You might hear someone talk about their older sister or younger sister to clarify age. Sometimes, people use it in a professional or religious context, like a nursing sister or a nun (who is often addressed as 'Sister').

Remember, the register is usually friendly. If you are being very formal, you might use 'sibling,' but 'sister' is the go-to word for everyday conversation. It is a warm, inclusive term that fits almost any social situation perfectly.

Idioms make language fun! Here are a few ways we use the word:

  • Sisterhood: The feeling of closeness between women. Example: 'The team developed a true sense of sisterhood.'
  • Sister city: A city paired with another to promote cultural ties. Example: 'Our town has a sister city in Japan.'
  • Big sister: Often used to describe someone who acts as a mentor. Example: 'She was like a big sister to me during college.'
  • Sister-in-law: The sister of your spouse. Example: 'I am going to dinner with my sister-in-law.'
  • Soul sister: A woman you feel a deep, spiritual connection with. Example: 'We have been friends for years; she is my soul sister.'

Grammatically, sister is a regular countable noun. To make it plural, you just add an 's' to get sisters. It is easy to use in a sentence: 'My sisters are coming over.'

Pronunciation is straightforward. In American English, it is ˈsɪstər. The 'r' at the end is usually pronounced clearly. In British English, it is often ˈsɪstə, where the 'r' is softer or silent.

It rhymes with words like blister, mister, and twister. The stress is on the first syllable: SIS-ter. Keep that rhythm in mind, and you will sound like a native speaker in no time!

Fun Fact

The word has remained remarkably stable in meaning for over a thousand years.

Pronunciation Guide

UK ˈsɪstə

The 'r' at the end is often dropped.

US ˈsɪstər

The 'r' is pronounced clearly.

Common Errors

  • Mispronouncing the 'i' sound
  • Swallowing the 'st' cluster
  • Adding an extra syllable

Rhymes With

blister mister twister fister resister

Difficulty Rating

Reading 1/5

easy

Writing 1/5

easy

Speaking 1/5

easy

Listening 1/5

easy

What to Learn Next

Prerequisites

family mom dad

Learn Next

sibling relative

Advanced

sisterhood

Grammar to Know

Possessive nouns

My sister's car.

Countable nouns

Two sisters.

Examples by Level

1

I have one sister.

I possess one female sibling.

Use 'have' for family.

2

My sister is nice.

My female sibling is kind.

Simple subject-verb.

3

She is my sister.

That person is my sibling.

Possessive pronoun.

4

Where is your sister?

Asking for location.

Question word.

5

I love my sister.

I care for my sibling.

Verb of emotion.

6

My sister is tall.

Describing height.

Adjective usage.

7

My sister likes cats.

Her preference.

Third person singular 's'.

8

My sister is here.

Location indicator.

Simple present.

1

My sister studies at university.

2

I went to the park with my sister.

3

My sister is a doctor.

4

She is my older sister.

5

Do you have any sisters?

6

My sister lives in London.

7

My sister and I look alike.

8

I bought a gift for my sister.

1

She is like a sister to me.

2

My sister-in-law is coming for dinner.

3

The organization has many sister branches.

4

She is the middle sister of three.

5

My sister is very supportive of my career.

6

We share a sisterly bond.

7

I call my sister every Sunday.

8

My sister is my best friend.

1

The two countries are sister nations.

2

She felt a sense of sisterhood with the other activists.

3

My sister is my greatest confidante.

4

We have a sister-like relationship.

5

The company opened a sister office in Paris.

6

She is a sister in the medical profession.

7

The book explores the complex relationship between sisters.

8

She treats me like a sister.

1

The university has a sister program with a school in Tokyo.

2

They share a sisterly affection that has lasted decades.

3

The two organizations operate as sister entities.

4

She is a sister in faith.

5

The narrative focuses on the rivalry between the two sisters.

6

The movement was built on the foundation of sisterhood.

7

They are sister disciplines in the field of science.

8

She acts as a sister to the younger students.

1

The city is a sister city to Berlin.

2

The sisters were estranged for many years.

3

She is a sister of the order.

4

Their sisterly bond was unbreakable.

5

The institution maintains a sister relationship with the library.

6

The novel depicts the sisters' divergent paths.

7

She is a sister to all in need.

8

The two departments are sister units within the firm.

Synonyms

sibling sis kin female sibling blood relative

Antonyms

Common Collocations

older sister
younger sister
twin sister
sister-in-law
sister city
sister organization
close sister
dear sister
big sister
little sister

Idioms & Expressions

"sisterhood"

the bond between women

They felt a strong sisterhood.

neutral

"soul sister"

a very close friend

She is my soul sister.

casual

"sister-in-arms"

a female comrade

She was my sister-in-arms.

literary

"big sister"

a mentor figure

She acted as a big sister.

casual

"sister city"

a partner city

We visited our sister city.

formal

"like a sister"

very close relationship

I treat her like a sister.

neutral

Easily Confused

sister vs sibling

both refer to family

sibling is gender-neutral

I have one sibling (could be brother or sister).

sister vs cousin

both are family

cousin is not a direct sibling

My cousin is my aunt's child.

Sentence Patterns

A1

My sister is [adj].

My sister is kind.

A1

I love my sister.

I love my sister.

A1

She is my sister.

She is my sister.

A2

My sister and I [verb].

My sister and I play.

B1

I have a sister who [clause].

I have a sister who lives in Paris.

Word Family

Nouns

sisterhood the state of being sisters

Adjectives

sisterly like a sister

Related

sibling gender-neutral term

How to Use It

frequency

9

Formality Scale

formal (Sister) neutral (my sister) casual (sis) slang (bestie)

Common Mistakes

Using 'sister' for a brother. brother
Sister is for females only.
Forgetting the 's' in plural. sisters
It is a countable noun.
Using 'sister' for a friend you just met. friend
Sister implies a deep bond.
Confusing 'sister-in-law' with 'sister'. sister-in-law
Different family relationship.
Capitalizing 'sister' when not a title. my sister
Only capitalize as a title.

Tips

💡

Memory Palace

Imagine your sister at the front door.

💡

Native Speakers

Use 'sis' for short.

🌍

Cultural Insight

Sisterhood is a strong concept.

💡

Grammar Shortcut

It is a countable noun.

💡

Say It Right

Stress the first syllable.

💡

Don't Make This Mistake

Do not use for males.

💡

Did You Know?

It has Norse roots.

💡

Study Smart

Use it in a family tree.

Memorize It

Mnemonic

SIS-ter: She Is Special.

Visual Association

Two girls holding hands.

Word Web

family sibling female bond

Challenge

Introduce your sister to a friend today.

Word Origin

Old Norse

Original meaning: female sibling

Cultural Context

None, but 'sister' can be a religious title.

Used to describe both biological family and close female friendships.

Little Women (book) Sister Act (movie) The Sisterhood of the Traveling Pants (book/movie)

Practice in Real Life

Real-World Contexts

Family gathering

  • This is my sister.
  • Meet my sister.

School

  • My sister goes to this school.

Travel

  • I am traveling with my sister.

Conversation Starters

"Do you have any sisters?"

"What is your sister like?"

"Are you close to your sister?"

"Do you look like your sister?"

"What is your sister's name?"

Journal Prompts

Describe your relationship with your sister.

Write about a memory with your sister.

What makes a good sister?

How does your sister inspire you?

Frequently Asked Questions

8 questions

Yes, in a figurative sense.

Only if used as a title.

Sisters.

Yes.

No.

Your spouse's sister.

Schwester.

Very.

Test Yourself

fill blank A1

I have one ___.

Correct! Not quite. Correct answer: sister

Sister is a family member.

multiple choice A2

What is a sister?

Correct! Not quite. Correct answer: A female sibling

Definition of sister.

true false B1

A sister must be related by blood.

Correct! Not quite. Correct answer: False

It can also mean a close friend.

match pairs B1

Word

Meaning

All matched!

Family terms.

sentence order B2

Tap words below to build the sentence
Correct! Not quite. Correct answer:

Subject-verb order.

Score: /5

Related Content

More Family words

cousin

A1

A cousin is the child of your aunt or uncle. It is a family member who shares the same grandparents as you but has different parents.

grandma

A1

An informal and affectionate term for a grandmother, defined as the mother of one's father or mother. It is a common family title used in everyday conversation.

aunt

A1

The sister of one's father or mother, or the wife of one's uncle. It is a kinship term used to describe a female member of the extended family.

obey

A1

To do what you are told to do by a person, a rule, or a law. In a family, it specifically means children following the instructions given by their parents or elders.

couple

A1

A couple refers to two people who are married or in a romantic relationship. It can also be used to describe two things of the same kind that are joined or considered together.

dad

A1

An informal and affectionate name for a father, used primarily by children or within a family context. It refers to a male parent who provides care and support for his offspring.

sofa

A1

A long, comfortable seat with a back and arms for two or more people to sit on at once. It is usually found in a living room and is designed for relaxing, reading, or watching television.

forgive

A1

To stop feeling angry at someone who has done something wrong or made a mistake. It means you accept their apology and decide to move forward without being upset anymore.

circumpateral

C1

Describes something that exists, moves, or is organized around a father figure or the paternal line. It is a rare, technical term used in sociology and genealogy to define structures or behaviors centered on a male patriarch.

circummaterize

C1

Describes a state of being completely surrounded by or deeply rooted in maternal influence or the foundational material matrix from which something originates. It is often used to characterize environments, systems, or emotional states that are defined by their protective and originating physical borders.

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