на животе

on one's stomach

→ на
phrase Rare #38,065
on one's stomach Used for a position on the front of the body, as in lying, sleeping, or swimming face down. It can also mean “on the abdomen” depending on context.
RU: Она лежит на животе.
EN: She is lying on her stomach.

Это самая чувствительная точка на животе.

This is the most sensitive point on the abdomen.

— Кинопроба (2000)

Мне нравится спать на животе.

I like to sleep on my stomach.

Я люблю спать на животе.

I like to sleep on my stomach.

Том лежит на животе.

Tom is lying on his stomach.

Да не на животе.

No, not on the stomach.

— Забавные игры (1997)

Я могу плыть на животе, но не на спине.

I can swim on my stomach, but not on my back.