Family & Relationships Vocabulary in English

15 family and relationship words with meanings, example sentences, and free interactive games — ideal for A1–A2 learners.

Family vocabulary is one of the first topics taught to English beginners, and it is easy to see why. Talking about your family — describing who you live with, your relationships, and your family background — is one of the most common conversation topics in everyday English and in English language tests.

This page covers 15 key family and relationship vocabulary words, from immediate family members (mother, father, brother, sister) to extended family and relationship terms (cousin, nephew, fiancé). Each word includes its meaning and a natural example sentence.

Family vocabulary is closely linked to grammar. Possessive structures are naturally practised with family words: "my sister's husband", "his parents' house", "their children's school". Learning family words also introduces gendered vocabulary — a key feature of English family terms, where most roles have distinct male and female forms.

After studying these words, explore Jobs and Professions vocabulary to describe what family members do for work, and Body Parts for describing physical resemblance within families.

Word List

WordMeaningExample Sentence
mothera female parentHis mother works as a doctor in the local hospital.
fathera male parentHer father taught her to ride a bike when she was five.
sistera female siblingShe has two sisters and one brother.
brothera male siblingHis brother lives in Australia.
grandmotherthe mother of your parentHer grandmother told wonderful stories about the old days.
grandfatherthe father of your parentMy grandfather fought in the Second World War.
auntthe sister of your parent, or your uncle's wifeHer aunt is a talented painter.
unclethe brother of your parent, or your aunt's husbandHis uncle took him fishing every summer.
cousinthe child of your aunt or uncleShe spent the summer with her cousins in Ireland.
nephewthe son of your brother or sisterHis nephew is starting school this September.
niecethe daughter of your brother or sisterShe bought a birthday present for her niece.
husbanda man who is marriedHer husband is a police officer.
wifea woman who is marriedHis wife is originally from France.
fiancéa man who is engaged to be marriedShe introduced her fiancé to her parents.
stepmotherthe woman who has married your father after the death or divorce of your motherHe has a good relationship with his stepmother.

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Frequently Asked Questions

What is the most common way to talk about family in English?
The most natural way to talk about family is to use possessive structures: 'my mum', 'my brother's wife', 'their parents'. In informal British English, 'mum' and 'dad' are used instead of 'mother' and 'father'. 'Folks' is an informal way to refer to your parents: 'I'm visiting my folks this weekend.' When describing family relationships, use 'My ... is ...' or 'I have a ... who ...'.
What is the difference between 'immediate family' and 'extended family'?
Immediate family includes the people you live with or your closest relatives: parents, siblings (brothers and sisters), and children. Extended family includes relatives beyond the immediate household: grandparents, aunts, uncles, cousins, nephews, and nieces. In some cultures, extended family is considered part of the core family unit, but in English the distinction is commonly made in formal contexts.
What are the female and male equivalents of family words in English?
Most English family words have gendered pairs: mother/father, sister/brother, grandmother/grandfather, aunt/uncle, niece/nephew, wife/husband, daughter/son. Some are the same for both genders: cousin, parent, sibling, spouse, child. 'Sibling' (brother or sister), 'parent' (mother or father), and 'spouse' (husband or wife) are useful neutral terms.
What does 'nuclear family' mean?
A nuclear family consists of two parents and their children living together as a single household unit. This was the dominant family model in Western countries through much of the 20th century. Today, many other family structures are common: single-parent families, blended families (step-parents and step-children from previous relationships), same-sex parent families, and multigenerational households.
What is a 'step-parent' and how is it different from a 'foster parent'?
A step-parent is a person who has married your biological parent after the death or divorce of your other parent. A foster parent is a person who provides temporary care for a child who cannot live with their own parents, usually arranged through social services. Step-parent relationships are permanent; foster parenting is usually temporary. 'Adoptive parent' refers to someone who has legally adopted a child.
How do you describe family relationships in English exams?
In IELTS Speaking Part 1, you may be asked: 'Tell me about your family.' Use a structured answer: 'I have a small/large family. I live with my parents and my younger sister. My mother is a teacher and my father works in finance.' In Cambridge exams, family vocabulary appears in reading texts about family life and in role play or description tasks. Using a variety of vocabulary (not just 'mum' and 'dad') demonstrates wider range.
What is the difference between 'relative' and 'relation'?
Both words refer to family members, but 'relative' is more common in British English: 'She has relatives in Canada.' 'Relation' can mean the same: 'He is a distant relation of mine.' Both can be used in both formal and informal contexts. 'Relative' is more frequently used in everyday speech, while 'relation' appears more in formal writing and phrases like 'in relation to'.
How do you use family vocabulary with possessives?
Possessives are natural with family vocabulary: 'my sister's husband' (apostrophe s for a single person), 'my parents' house' (apostrophe after s for plural). You can also use 'of': 'the mother of three children'. Practice: 'My grandmother's name is Maria.', 'Her brother's car is blue.', 'Their parents' garden is beautiful.' This is a key grammar area for A1–A2 learners.
What does 'in-law' mean in English?
'In-law' refers to relatives by marriage. Your mother-in-law is your spouse's mother; your father-in-law is your spouse's father. A sister-in-law is your spouse's sister or your sibling's wife. A brother-in-law is your spouse's brother or your sibling's husband. The phrase can also be used informally to refer to relations from a second marriage in blended families.
How can family vocabulary help me in IELTS Speaking?
Family is a frequent IELTS Speaking Part 1 topic. Strong answers combine family vocabulary with other topic vocabulary: 'My elder sister is a nurse. She is very hardworking and I admire her dedication.' Use comparison language: 'My brother is more outgoing than I am.' Use possessives and relative clauses: 'My grandmother, who is 80, still lives independently.' Varied vocabulary and grammatical structures both contribute to a higher score.