Usama bin Laden vs Osama bin Laden

Usama bin Laden and Osama bin Laden both are nouns.

Word	Noun	Adjective	Verb	Adverb
Usama bin Laden	Yes	No	No	No
Osama bin Laden	Yes	No	No	No

As nouns, Usama bin Laden and Osama bin Laden are synonyms defined as:

Usama bin Laden and Osama bin Laden: Arab terrorist who established al-Qaeda (born in 1957)

Other synonyms of Usama bin Laden include bin Laden.

Usama bin Laden (noun)	Osama bin Laden (noun)
Arab terrorist who established al-Qaeda (born in 1957)	Arab terrorist who established al-Qaeda (born in 1957)