os seios

the breasts

→ o
phrase Rare #30,572
the breasts Means “the breasts” or “the boobs”; “seios” is the usual neutral term for breasts in this context.
PO: Ela não quer mostrar os seios na cena de nudez.
EN: She doesn't want to show her breasts in the nude scene.

Maria mostrou os seios.

Maria showed her breasts.

A namorada dela tem os seios muito pequenos.

Her girlfriend has very small breasts.

Não quer mostrar os seios na cena de nudez?

You don't want to show your breasts in the nude scene?

— Deu a Louca nos Astros (2000)

Ainda que negue, percebi que olhava para os seios dela.

Even though he denies it, I noticed he was looking at her breasts.

— Fale com Ela (2002)

Os seios dela são enormes.

Her breasts are huge.

— Ninguém Pode Saber (2004)

Não quer mostrar os seios.

She doesn't want to show her breasts.

— Deu a Louca nos Astros (2000)

Em Paris, antes de pôr os seios.

In Paris, before getting breast implants.

— Tudo Sobre Minha Mãe (1999)

Desde então os homens dizem quando querem tocar os seios de uma mulher.

Since then, men have been able to say when they want to touch a woman's breasts.

— A Criada (2016)