This is the 3356th most frequent Russian word.
подтверждения
Confirmation.
Here 'подтверждения' is used as a noun referring to the confirmation or validation of an action or request.
Я жду подтверждения своего заказа.
I am waiting for confirmation of my order.
Here 'подтверждения' is part of a noun phrase 'код подтверждения,' indicating an item or a specific detail required to confirm an operation.
Для успешной регистрации понадобится код подтверждения.
A confirmation code will be necessary for successful registration.
In this case, 'подтверждения' refers to evidence or verification supporting the truthfulness or validity of a statement.