Which word means to enrage or infuriate someone?

The word that means to enrage or infuriate someone is "incense." This term specifically refers to causing someone to feel extremely angry or provoked. When someone is "incensed," they experience a strong emotional response, often as a reaction to something perceived as unjust or offensive.

The other options do not convey this meaning. "Inaugurate" refers to the act of formally beginning or inducting someone into office. "Indifferent" describes a lack of interest, concern, or sympathy, which is unrelated to provoking anger. "Inventive" pertains to creativity and originality, highlighting someone’s ability to create or devise new ideas or things, but it does not relate to feelings of anger. Thus, "incense" is the word that accurately describes the act of enraging someone.