William Thompson vs Kelvin

William Thompson and Kelvin both are nouns.

Word	Noun	Adjective	Verb	Adverb
William Thompson	Yes	No	No	No
Kelvin	Yes	No	No	No

As nouns, William Thompson and Kelvin are synonyms defined as:

William Thompson and Kelvin: British physicist who invented the Kelvin scale of temperature and pioneered undersea telegraphy (1824-1907)

Other synonyms of William Thompson include First Baron Kelvin.

William Thompson (noun)	Kelvin (noun)
British physicist who invented the Kelvin scale of temperature and pioneered undersea telegraphy (1824-1907)	British physicist who invented the Kelvin scale of temperature and pioneered undersea telegraphy (1824-1907)