Hussein vs Husayn

Hussein and Husayn both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hussein	Yes	No	No	No
Husayn	Yes	No	No	No

As nouns, Hussein and Husayn are synonyms defined as:

Hussein and Husayn: king of Jordan credited with creating stability at home and seeking peace with Israel (1935-1999)

Other synonyms of Hussein include Husain, Hussein of Jordan, ibn Talal Hussein, King Hussein.

As nouns, Hussein and Husayn are synonyms defined as:

Hussein and Husayn: Iraqi leader who waged war against Iran; his invasion of Kuwait led to the Gulf War (born in 1937)

Other synonyms of Hussein include Husain, Saddam, Saddam bin Hussein at-Takriti, Saddam Hussein.

Hussein (noun)	Husayn (noun)
king of Jordan credited with creating stability at home and seeking peace with Israel (1935-1999)	king of Jordan credited with creating stability at home and seeking peace with Israel (1935-1999)
Iraqi leader who waged war against Iran; his invasion of Kuwait led to the Gulf War (born in 1937)	Iraqi leader who waged war against Iran; his invasion of Kuwait led to the Gulf War (born in 1937)