Correct spelling, explanation: alcohol entered English in the 16th century when it came from French. The word itself, however, has Arabic origins, where it referred to a powdered substance known as kohl. In modern English, it is a well-known word, used both in everyday and professional English.

Definition of alcohol:
uncountable noun – a liquid chemical substance that can get you drunk, You are not allowed to drink any alcohol if you are under eighteen.

Expressions with alcohol:
Some common expressions with the word alcohol include:
rubbing alcohol – a liquid with alcohol used to disinfect a person’s skin from bacteria,
It is a nasty cut so I’d better go for some rubbing alcohol.
the demon alcohol – refers to the unpleasant consequences of drinking too much alcohol,
It is the demon alcohol that makes me feel so bad today.
ethyl alcohol – a chemical substance also known as ethanol,
Many cleaning supplies include ethyl alcohol.

Incorrect spelling, explanation: a common mistake made in the spelling of the word alcohol is to write it with -ch instead of -c, which results in alchohol. It is a consequence of the fact that the sound -k in English is often written as -ch. In the case of this word, however, the only correct option is alcohol.

Incorrect spelling

Incorrect spelling

Incorrect spelling