Hindu vs Hindooism

Hindu and Hindooism both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hindu	Yes	Yes	No	No
Hindooism	Yes	No	No	No

Hindu (noun)	Hindooism (noun)
a native or inhabitant of Hindustan or India	a body of religious and philosophical beliefs and cultural practices native to India and based on a caste system; it is characterized by a belief in reincarnation, by a belief in a supreme being of many forms and natures, by the view that opposing theories are aspects of one eternal truth, and by a desire for liberation from earthly evils
a person who adheres to Hinduism	the religion of most people in India, Bangladesh, Sri Lanka, and Nepal

Hindu (adjective)	Hindooism (adjective)
of or relating to or supporting Hinduism