This is the 998th most frequent Russian word.
алкоголя
The Russian word "алкоголя" means "alcohol" (genitive case).
In this sentence, 'алкоголя' is used in the genitive case to indicate that alcohol as a substance is not consumed by the subject.
Я не пью алкоголя.
I don't drink alcohol.
In this example, 'алкоголя' is used generically to indicate an unspecified amount of alcohol as an ingredient.
Для коктейля нужно немного алкоголя.
A bit of alcohol is needed for the cocktail.
Here, 'алкоголя' is in the genitive case to show possession, referring to the alcohol in the blood.