adverb

This term identifies a specific grammatical category used to provide additional detail about actions or qualities. It functions as a modifier, shifting the focus from the entity itself to the circumstances of the action, such as how, when, where, or to what extent something occurs. As a noun, it follows standard English countability rules. It is a countable noun, meaning it can be pluralized to refer to multiple instances of these modifiers within a sentence or a linguistic study.