author vs Haldane

author and Haldane both are nouns.

Word	Noun	Adjective	Verb	Adverb
author	Yes	No	Yes	No
Haldane	Yes	No	No	No

author (noun)	Haldane (noun)
writes (books or stories or articles or the like) professionally (for pay)	Scottish statesman and brother of Elizabeth and John Haldane (1856-1928)
someone who originates or causes or initiates something	Scottish writer and sister of Richard Haldane and John Haldane (1862-1937)
	Scottish physiologist and brother of Richard Haldane and Elizabeth Haldane; noted for research into industrial diseases (1860-1936)
	Scottish geneticist (son of John Haldane) who contributed to the development of population genetics; a popularizer of science and a Marxist (1892-1964)

author (verb)	Haldane (verb)
be the author of