While it doesn't technically have a part of speech itself, it's used to form adjectives.
Here's how it works:
* It's added to verbs or nouns to create adjectives that describe something's capability or suitability.
* For example:
* "break" (verb) + "-able" = "breakable" (adjective)
* "fashion" (noun) + "-able" = "fashionable" (adjective)
So, while "-able" isn't a part of speech on its own, it's a powerful tool for creating adjectives and describing things!