Osama bin Laden vs bin Laden

Osama bin Laden and bin Laden both are nouns.

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

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

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

Other synonyms of Osama bin Laden include Usama bin Laden.

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