Insight (pronounced IN - site) is a noun that means an in-depth understanding:
The biography offered many insights into the life of a famous artist.
The research will provide insight into the development of the brain.
She has lived in Mongolia for 30 years, and has valuable insight into the local culture.
Incite (pronounced in - SITE) is a verb that means to provoke to action. It is often used for provoking violent actions such as hatred, riots, and rebellion.
The community leader's angry words incited a riot.
Social media is sometimes used to incite hatred of religious minorities.