good and evil; purity and impurity
Abstract noun referring to moral or qualitative opposites. Often used in set phrases like 清濁併せ呑む (to accept both good and bad, to be broad-minded).
He is the kind of person who accepts both good and bad.
voiced and unvoiced consonants
Linguistics term. Refers to the distinction between voiced (濁音) and unvoiced (清音) consonants in Japanese phonology.
The distinction between voiced and unvoiced consonants in Japanese can be difficult for foreign learners.
He gathered all kinds of information, good and bad alike.
Foreign learners find it difficult to distinguish the voiced and unvoiced sounds of words.