Essential Family Vocabulary in English (B1 Level) — B1 English vocabulary lesson by Langcom

Essential Family Vocabulary in English (B1 Level)

Raúl Maguiña

Fundador de Langcom | Examinador de Cambridge y del SIELE

septiembre 14, 2026

B1📚 Vocabulario⏱️ 4 minutos de lectura📅 Updated septiembre 2026
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Understanding family vocabulary is a key step in improving your English communication at B1 level. Knowing how to talk about your family helps you share personal stories, introduce loved ones, and understand conversations about other people’s lives. This lesson will introduce you to essential words for immediate and extended family members, from your mother y father to your grandparents, aunts, y uncles. We will cover both formal and informal terms, like mum y dad, so you can speak naturally in different situations. You will learn how to differentiate between siblings, children, and other relatives. Mastering these words will make your English sound more authentic and help you connect better with native speakers, allowing you to discuss personal topics with greater confidence and accuracy. Get ready to expand your vocabulary and confidently describe your family tree!

Who is in your immediate family?

Your immediate family usually includes your closest relatives. These are the people you often live with or see regularly.

  • Mother / Mum: Your female parent. Mum is more informal.
  • Father / Dad: Your male parent. Dad is more informal.
  • Parents: Both your mother y father.
  • Sister: A female child of your parents.
  • Brother: A male child of your parents.
  • Siblings: Your brothers y sisters together.
  • Son: A male child.
  • Daughter: A female child.
  • Children: Your sons y daughters.

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What about your extended family?

Extended family includes relatives beyond your immediate family. These are people like your grandparents, aunts, uncles, and cousins.

  • Grandmother / Granny / Grandma: Your mother's or father's mother. Granny y Grandma are informal.
  • Grandfather / Granddad / Grandpa: Your mother's or father's father. Granddad y Grandpa are informal.
  • Grandparents: Both your grandmother y grandfather.
  • Aunt: Your mother's or father's sister.
  • Uncle: Your mother's or father's brother.
  • Cousin: The child of your aunt o uncle. This word is used for both male and female relatives.
  • Niece: The daughter of your brother o sister.
  • Nephew: The son of your brother o sister.

How do we talk about marital status?

When discussing adults in a family, you might also talk about their marital status. These words describe relationships between partners.

  • Husband: A married man.
  • Wife: A married woman.
  • Married: Having a husband o wife.
  • Single: Not married.
  • Divorced: Legally separated from a husband o wife.
Formal and Informal Family Terms
Formal Informal (UK English)
Mother Mum
Father Dad
Grandmother Granny / Grandma
Grandfather Granddad / Grandpa
Siblings Brothers and sisters
Children Kids

Ejemplos

  • My mum and dad are coming to visit this weekend.
  • I have one brother and two sisters; we are a big family.
  • My grandparents live in a small town.
  • She is my aunt, and her children are my cousins.
  • My uncle works as a teacher.
  • They have two children, a son and a daughter.
  • My niece is starting university next year.
  • He is married to my sister. He is my brother-in-law.

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Errores habituales de los hispanohablantes

Using "relatives" instead of "parents": In Spanish, "mis padres" means "my parents." However, some learners might incorrectly translate this as my relatives.

  • Correcto: My parents are visiting. (Meaning: my mother and father)
  • Incorrecto: My relatives are visiting. (Meaning: any family member, not specifically mother and father)

Gender for "cousin": In Spanish, you have "primo" and "prima." In English, cousin is used for both.

  • Correcto: My cousin is coming. (Can be male or female)
  • Incorrecto: My male cousin is coming. (Not necessary, just my cousin is enough unless you need to specify)

Using "grandparents" for one grandparent: Grandparents is plural.

  • Correcto: My grandmother is very kind.
  • Correcto: My grandparents are visiting.
  • Incorrecto: My grandparent is visiting. (If referring to only one, use grandmother o grandfather)

Preguntas más frecuentes

¿Cuál es la diferencia entre mum y mother?

Mother is the formal word for a female parent. Mum (o Mom in American English) is an informal, affectionate term used in everyday conversation. You would use mother in formal writing or when speaking generally, but mum when talking directly to or about your own mother.

How do I say 'my parents' in English?

You simply say my parents. This refers to both your mother y father. Do not use my relatives if you mean specifically your mother y father, as relatives can mean any family member.

What about 'in-laws' in English?

In-laws are your spouse's family members. For example, your husband's mother es tu mother-in-law, and your wife's brother es tu brother-in-law. This term is very common.

Why is learning family vocabulary important for B1 English?

At B1 level, you need to be able to describe personal experiences and talk about your life. Family is a central part of many people's lives, so knowing these words allows you to participate in common conversations, introduce your family members, and understand stories about others. It helps you build stronger connections and communicate more naturally.

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Sobre el autor: Raúl Maguiña

Raúl Maguiña es el director de la Asociación Educativa Langcom, un centro autorizado de preparación para el examen Cambridge English en tu país. Con más de una década de experiencia en la enseñanza de idiomas y la certificación internacional, ha ayudado a miles de estudiantes, profesores e instituciones educativas de 25 países a conseguir las certificaciones de inglés de Cambridge, IELTS, TOEFL y Michigan.

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