Intensifier

• abstract: Intensifier is a linguistic term (but not a proper lexical category) for a modifier that makes no contribution to the propositional meaning of a clause but serves to enhance and give additional emotional context to the word it modifies. Intensifiers are grammatical expletives, specifically expletive attributives (or, equivalently, attributive expletives or attributive-only expletives, they also qualify as expressive attributives), because they function as semantically vacuous filler.

以上来源于: WordNet