c'est son

it's his/her

→ ce
phrase Very common #1,662
it's his/her This phrase is normally followed by a singular masculine noun: « C'est son livre » means “It's his/her book.” Before a feminine noun, use « c'est sa » instead. « Son » does not indicate whether the owner is male or female.
FR: C'est son nouveau téléphone.
EN: It's his/her new phone.

C'est son poumon qui est infecté, non?

It’s his lung that’s infected, right?

— The Big Sick (2017)

C'est son caractère qui fait à chacun sa destinée.

It is one’s character that determines one’s destiny.

C'est son délai d'adaptation.

That’s his adjustment period.

— Le Cinquième Élément (1997)

C'est son gagne-pain.

It's his livelihood.

S'il veut se faire arrêter, c'est son droit.

If he wants to get himself arrested, that's his right.

— Paddington 2 (2017)

C'est son jour de paye!

It's payday!

— The Garden of Sinners, film 5 : Spirale contradictoire (2008)

C'est son sandwich.

It's his sandwich.

— Intouchables (2011)

C'est son foutu bébé.

It's his damn baby.

— Marty Supreme (2025)

C'est son troupeau.

It's his herd.

— Manon des sources (1986)

C'est son jeudi.

It's his Thursday.

— Mommy (2014)

C'est son affaire.

It's his business.

— De tout cœur (1998)

Il part toujours en dernier, c'est son habitude.

He always leaves last, it's his habit.

C'est son restaurant?

Is it his restaurant?

— Volver (2006)

C'est son mode opératoire.

This is his modus operandi.

— Avengers (2012)

C'est son surnom.

That's his nickname.

C'est son jour de repos.

It's his day off.

— Blade Runner 2049 (2017)

C'est son cadeau d'anniversaire.

It's his birthday present.

— Le Sacrifice (1986)

C'est son sens de l'humour.

It's his sense of humor.

C'est son truc.

That's his thing.

C'est son jour de chance.

It's his lucky day.

Faire semblant d'être surpris, c'est son truc.

Pretending to be surprised is kind of his thing.

C'est son problème, pas le mien.

It's his problem, not mine.

C'est son rôle.

That's his role.

Et c'est son phare!

And that's its lighthouse!

— Astérix & Obélix : Mission Cléopâtre (2002)

Il lui dit que c'est son phare!

He tells her that it’s his lighthouse!

— Astérix & Obélix : Mission Cléopâtre (2002)

C'est son métier.

It's his job.

— Les Quatre Cents Coups (1959)

Ce que j'aime le plus chez elle, c'est son optimisme.

What I like most about her is her optimism.

— Romance de bureau (1977)

C'est son premier jour à Wall Street.

It's his first day on Wall Street.

— Le Loup de Wall Street (2013)

C'est son choix.

It's his choice.

C'est son entrepôt.

It's his warehouse.

— La vie est belle (1997)

C'est son tabac.

That's his tobacco shop.

— Le Bon, la Brute et le Truand (1966)

C'est son habitude de jouer les victimes.

It’s typical of him/her to play the victim.

C'est son émission maintenant.

It's her show now.

— Running Man (2025)

C'est son cahier.

It's his notebook.

— Tout sur ma mère (1999)

C'est son droit.

It's his right.

C'est son seul enfant.

He/She is her/his only child.

C'est son jour de congé.

It's his day off.

— Chungking Express (1994)

C'est son dernier souhait, après tout.

It's their last wish, after all.

— Sacrifices of War (2011)

C'est son sale petit secret.

It's his dirty little secret.

Pour lui, c'est son parking.

To him, it’s his parking spot.

— Intouchables (2011)

C'est son Ordre qui a écrit ça!

It was his Order that wrote that!

— Dune : Deuxième partie (2024)

C'est son premier jour.

It's his first day.

C'est son quartier.

This is his neighborhood.

— Le Frère 2 (2000)

C'est son tableau préféré, son tableau porte-bonheur.

It's his favorite painting, his lucky painting.

C'est son habitude, non?

That's his/her usual habit, isn't it?

— Le Cinquième Élément (1997)

C'est son mode opératoire, mec.

That's his modus operandi, man.

— Crime 101 (2026)