Are idioms and euphemisms part os speech?

Idioms and euphemisms are not classified as parts of speech; rather, they are expressions or phrases used in language. Idioms are figurative expressions whose meanings are not deducible from the individual Words, while euphemisms are mild or indirect terms used to replace harsher or more direct language. Both enrich communication by conveying meanings in a nuanced way, but they do not fit into the traditional categories of parts of speech like nouns, verbs, or adjectives.