This is the 13468th most frequent Russian word.
напитков
The word "напитков" is the genitive plural form of "напиток," meaning "drinks" or "beverages" in English.
The word "напитков" is in the genitive plural form, used to indicate possession or quantity, meaning "of beverages."
В магазине есть большой выбор напитков.
The store has a wide selection of beverages.
Here, "напитков" is again in the genitive plural form, following the word "разных" (different), which describes the types of beverages sampled.
Мы организовали дегустацию разных напитков.
We organized a tasting of different beverages.
Similar to previous examples, "напитков" is used in the genitive plural form after "несколько" (several), denoting the specific quantity required for the occasion.