Focus on the pronunciation of intensifier
English definition of “intensifier”
/ɪnˈten·səˌfɑɪ·ər/ n [C] (also intensive /ɪnˈten·sɪv/)
› grammar a word, esp. an adverb, that is used to add force to another word or phrase: In "extremely large" and "I strongly object," "extremely" and "strongly" are intensifiers.