alcohol
The French word for alcohol is 'alcool'. It is used in similar contexts as in English-speaking cultures. It could refer to alcoholic drinks in general or the chemical compound. For example, 'boire de l'alcool' means 'to drink alcohol'.
You should never drive after drinking alcohol.
This sentence is advising about the dangers of drinking and driving, a universally frowned upon action for its risk and potential harm.
Alcohol can cause serious health problems.
This phrase is stating a widely-accepted health fact that overconsumption of alcohol can lead to a multitude of health issues.
This alcohol is very strong, it needs to be diluted.
This statement is about a strong alcoholic beverage that might be too powerful or concentrated to drink as it is, thus it is suggested to dilute it.