не говори никому

don't tell anyone

→ не
phrase Uncommon #23,247
don't tell anyone An informal singular imperative. The polite or plural form is «не говорите никому»; «никому» means “to anyone” after negation.
RU: Не говори никому о моём сюрпризе.
EN: Don't tell anyone about my surprise.

Не говори никому, а то они будут напуганы.

Don't tell anyone, or they'll be scared.

— Навсикая из Долины Ветров (1984)

И не говори никому.

And don't tell anyone.

— Сказание о принцессе Кагуя (2013)

Не говори никому.

Don’t tell anyone.

— Не говори никому (2006)

Просто не говори никому, ладно?

Just don't tell anyone, okay?