leadership vs leading

leadership and leading both are nouns.

Word	Noun	Adjective	Verb	Adverb
leadership	Yes	No	No	No
leading	Yes	Yes	No	No

As nouns, leadership and leading are synonyms defined as:

leadership (noun)	leading (noun)
the activity of leading	thin strip of metal used to separate lines of type in printing
the ability to lead	the activity of leading
the body of people who lead a group
the status of a leader

leadership (adjective)	leading (adjective)
	going or proceeding or going in advance; showing the way
	greatest in importance or degree or significance or achievement
	having the leading position or higher score in a contest
	indicating the most important performer or role