Intensive
Part of speech: noun
Definition: Form of a word with a stronger or more forceful sense than the root on which the intensive is built.
Part of speech: adjective
Definition: Thorough, to a great degree, with intensity. Demanding, requiring a great amount. Highly concentrated.
Example sentence: Building cars is highly specialized, it's hard, and it's capital intensive.
Intensifier
Part of speech: noun
Definition: A modifier such as very, terribly or damned that has little or no meaning of its own and serves to enhance and give additional emotional context to the word that it modifies.