This is the 14897th most frequent Russian word.
подарка
"Подарка" is a form of "подарок," which means "gift" or "present" in English.
In this sentence, 'подарка' is the genitive case singular form of 'подарок,' meaning 'a gift,' used to indicate possession or receipt from someone.
Я жду подарка от друзей.
I'm waiting for a gift from my friends.
Here, 'подарка' is used again in the genitive singular case to describe something belonging to or associated with the gift, specifically indicating the source of the box.
На столе лежит коробка из-под подарка.
A box from under the gift is lying on the table.
'Подарка' in this context is in the genitive case singular form used to describe purpose or association of the wrapping with the gift.