Dihydroxy derivatives of benzene are named as 1,2-, 1,3-, and 1,4-benzenediol in common nomenclature.

The IUPAC name for the simplest hydroxy derivative of benzene is phenol. Substituted compounds use the terms ortho (1,2-disubstituted), meta (1,3-disubstituted), and para (1,4-disubstituted) to indicate substituent positions.

Polyhydric alcohols retain the ‘e’ of the alkane and add the suffix ‘ol,’ with the number of -OH groups indicated by multiplicative prefixes. For cyclic alcohols, the prefix “cyclo” is used, and the —OH group is considered attached to C–1 ...

In the IUPAC system, the name of an alcohol is derived from the corresponding alkane by replacing ‘e’ with ‘ol’. Substituent positions are indicated using numerals, starting from the end nearest to the hydroxyl group.

The common name of an alcohol is derived from the common name of the alkyl group, with the word “alcohol” added. For example, CH₃OH is called methyl alcohol.