Family Members in French: Complete Vocabulary Guide

Key takeaways

• French family vocabulary has separate words for many relationships that English collapses: grand-père (grandfather) vs. papi (grandpa), beau-père (stepfather OR father-in-law depending on context).
• Possessive adjectives in French agree with the noun they modify, not with the possessor: ma mère (my mother) but mon père (my father), and mon amie (my female friend) because amie begins with a vowel.
• The beau-/belle- prefix is used for both step-relatives and in-laws, which causes regular confusion for French learners.
• Talking about family is one of the most common conversation topics in French and one of the first contexts where learners encounter possessive adjectives, avoir constructions, and the vocabulary for numbers and ages.

Family is one of the earliest real conversation topics for French learners: introducing yourself, describing your background, asking about someone’s family, talking about where you’re from. It is also one of the first areas where grammar meets vocabulary in a practical way, because describing your family requires possessive adjectives (mon, ma, mes), and French possessive adjectives agree with the noun rather than the owner, which catches almost every English speaker.

This guide covers 60+ French words for family members organised by relationship, possessive adjective rules with family vocabulary, key phrases for talking about your family, and cultural notes on French family life.

italki, which has connected 10M+ learners with teachers across 150+ languages since 2007, has French teachers who use personal topics like family as the starting point for conversation lessons, because talking about real people you know builds vocabulary and grammar at the same time. Find a French tutor and try a session where you describe your own family in French.

Immediate family vocabulary

French	English	Gender note
la famille	family	feminine
les parents	parents (also: relatives)	masculine plural
le père	father	masculine
la mère	mother	feminine
le fils	son	masculine
la fille	daughter	feminine
le frère	brother	masculine
la sœur	sister	feminine
l’enfant	child	masculine or feminine
le bébé	baby	masculine (for all babies unless specifying)
les jumeaux / les jumelles	twins (m/f)	masculine / feminine
l’aîné/e	eldest child	masc./fem.
le cadet / la cadette	youngest child	masc./fem.
le mari	husband	masculine
la femme	wife (also: woman)	feminine
l’époux / l’épouse	spouse (husband/wife, formal)	masc./fem.
le conjoint / la conjointe	partner, spouse	masc./fem.
le compagnon / la compagne	partner (unmarried)	masc./fem.
le petit ami / la petite amie	boyfriend / girlfriend	masc./fem.

A note on les parents: In French, les parents means “parents” in context but also means “relatives” or “family members” more broadly. Mes parents = my parents (mother and father) in everyday conversation, but un parent can also mean a relative in formal or literary use.

Extended family vocabulary

French	English
le grand-père	grandfather
la grand-mère	grandmother
les grands-parents	grandparents
le petit-fils	grandson
la petite-fille	granddaughter
les petits-enfants	grandchildren
l’oncle	uncle
la tante	aunt
le neveu	nephew
la nièce	niece
le cousin / la cousine	cousin (m/f)
l’arrière-grand-père	great-grandfather
l’arrière-grand-mère	great-grandmother
l’arrière-petit-fils	great-grandson
l’arrière-petite-fille	great-granddaughter

Plural note: les grands-parents (grandparents) hyphenates and both parts pluralise: grand-père → grands-pères. French compound family terms follow this hyphenation pattern: beaux-parents, petits-enfants.

In-laws and step-relatives

The beau-/belle- prefix causes frequent confusion because it covers both in-laws and step-relatives. Context usually clarifies which is meant.

In-laws

French	English
le beau-père	father-in-law
la belle-mère	mother-in-law
le beau-fils	son-in-law
la belle-fille	daughter-in-law
le beau-frère	brother-in-law
la belle-sœur	sister-in-law
les beaux-parents	in-laws (parents)

Step-relatives

French	English
le beau-père	stepfather
la belle-mère	stepmother
le beau-fils / le fils adoptif	stepson
la belle-fille / la fille adoptive	stepdaughter
le demi-frère	half-brother / stepbrother
la demi-sœur	half-sister / stepsister

Le beau-père can mean both “father-in-law” and “stepfather”; the relationship is clear from context (married partner’s father vs. mother’s new husband). For stepchildren specifically, beau-fils/belle-fille and fils/fille adoptif/adoptive are both used; demi-frère/sœur is the clearest term for half-siblings.

Working through these with a French teacher means practicing the vocabulary in the context of describing your own family tree, which is when the difference between in-laws and step-relatives becomes genuinely meaningful to the learner.

Informal and affectionate terms

These are the words French families actually use in conversation.

Informal / affectionate	Formal equivalent	English
papa	le père	dad
maman	la mère	mum/mom
papi / papy	le grand-père	grandpa
mamie / mamy	la grand-mère	grandma
frérot	le frère	bro (very informal)
frangine	la sœur	sis (very informal)
tonton	l’oncle	uncle (child’s affectionate form)
tatie / tata	la tante	auntie (child’s affectionate form)
chéri/e	(none)	darling, sweetheart
mon amour	(none)	my love

These informal terms are common in everyday spoken French and the forms a learner will hear in a French family environment. Knowing papi and mamie alongside grand-père and grand-mère is the difference between recognizing family references in normal speech and needing them spelled out.

Possessive adjectives with family vocabulary

French possessive adjectives agree with the noun they modify, not with the speaker. This is the most common grammar error with family vocabulary.

Possessor	Masculine singular	Feminine singular	Plural
my	mon	ma	mes
your (tu)	ton	ta	tes
his/her	son	sa	ses
our	notre	notre	nos
your (vous)	votre	votre	vos
their	leur	leur	leurs

Key rule for vowel-initial nouns: When a feminine noun begins with a vowel or silent h, ma/ta/sa become mon/ton/son to avoid the vowel clash.

• ma mère (my mother): normal agreement
• mon amie (my [female] friend): amie begins with a vowel, so mon not ma

The “his/her” ambiguity: French son/sa/ses means “his,” “her,” and “its”; the gender follows the noun, not the possessor.

• son père = his father / her father (depending on who the possessor is)
• sa mère = his mother / her mother

This ambiguity is resolved by context, not grammar. French speakers do not find it confusing; learners from English often do, because English distinguishes “his” from “her.”

For a complete treatment of adjective agreement patterns in French, the French adjectives guide covers the gender and number agreement rules that apply across vocabulary categories.

Phrases for talking about family

French	English
J’ai deux frères et une sœur.	I have two brothers and one sister.
Je suis fils/fille unique.	I am an only child.
Je suis l’aîné(e) de la famille.	I’m the eldest in the family.
Je suis proche de ma famille.	I’m close to my family.
Ma famille vit en France.	My family lives in France.
Je vois mes grands-parents tous les dimanches.	I see my grandparents every Sunday.
Mes parents sont divorcés.	My parents are divorced.
J’ai grandi avec ma grand-mère.	I grew up with my grandmother.
On se réunit en famille pour Noël.	We get together as a family for Christmas.
Il me ressemble beaucoup.	He looks a lot like me.
Elle tient de sa mère.	She takes after her mother.
Nous sommes une famille nombreuse.	We are a large family.
C’est mon beau-frère.	This is my brother-in-law.

Questions about someone’s family:

French	English
Vous avez des enfants?	Do you have children?
Tu as des frères et sœurs?	Do you have siblings?
C’est votre famille?	Is this your family?
Vos parents vivent près d’ici?	Do your parents live near here?
Comment s’appelle ta sœur?	What is your sister’s name?

Family-related verbs

French	English
s’appeler	to be called / named
ressembler à	to look like, to resemble
tenir de	to take after
se marier (avec)	to get married (to)
divorcer	to get divorced
avoir des enfants	to have children
attendre un bébé	to be expecting a baby
élever ses enfants	to raise one’s children
grandir	to grow up
vieillir	to grow old
perdre quelqu’un	to lose someone (death)
se retrouver en famille	to get together as a family
réunir la famille	to bring the family together

Cultural notes on French family life

Le repas familial: Shared meals are central to French family culture. Sunday lunch (le déjeuner du dimanche) brings extended family together regularly, particularly for grandparents. The phrase on va chez mes parents dimanche (we’re going to my parents’ on Sunday) implies a large shared meal.

La famille recomposée: Blended families (les familles recomposées) are common and openly discussed in French. The vocabulary for step- and half-relatives (beau-père, demi-sœur) therefore comes up frequently in everyday conversation.

Vous vs. tu: Adult family members use tu with each other. In more formal or older families, children might use vous with grandparents or much older relatives, but this is increasingly uncommon. Using tu with a French person’s family is generally expected once you know each other.

Les prénoms: French names often reflect family patterns: naming after grandparents, religious names, and regional names are all common. Knowing that Jean is the grandfather’s name when you meet someone called Jean-Baptiste is the kind of cultural reading that comes from speaking with French native speakers.

Building family vocabulary into real conversation

Family vocabulary is one of the first things learners can actually use in a meaningful conversation: describing their own family, asking about someone else’s, talking about how they grew up. That early conversational payoff makes it one of the most motivating vocabulary sets to work on.

italki has 30,000+ teachers across 150+ languages, including French teachers who structure early lessons around personal topics like family, precisely because the vocabulary is immediately useful and the grammar (possessives, avoir, être) supports everything else that follows. 

Learn French faster with personal guidance from qualified French teachers trusted by over 10 million learners worldwide. Book a trial lesson with a online French tutor today.

FAQ

How do you say “brother” and “sister” in French?

Le frère (brother) and la sœur (sister). Collectively, siblings are les frères et sœurs. To say “I have a brother and a sister”: J’ai un frère et une sœur.

What is the difference between beau-père as father-in-law and stepfather?

Both meanings use the same word. Context determines which: if you are speaking about your spouse’s father, beau-père means father-in-law. If you are speaking about your mother’s husband who is not your biological father, beau-père means stepfather.

Why does ma become mon before some feminine nouns?

French avoids two vowel sounds running together. Before a feminine noun beginning with a vowel or silent h, the feminine possessives ma, ta, sa become the masculine forms mon, ton, son: mon amie (not ma amie), mon école (not ma école).

How do you say “only child” in French?

Je suis fils unique (male) or je suis fille unique (female). No article is used: not je suis un fils unique.

What is les beaux-parents in French?

Les beaux-parents means “in-laws” (specifically, the spouse’s parents) or in a blended family, “step-parents.” Which meaning applies depends on context: if speaking about your spouse’s family, it means in-laws; if describing a parent’s new partner, it means step-parents.