Sir William Crookes vs William Crookes

Sir William Crookes and William Crookes both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sir William Crookes	Yes	No	No	No
William Crookes	Yes	No	No	No

As nouns, Sir William Crookes and William Crookes are synonyms defined as:

Sir William Crookes and William Crookes: English chemist and physicist; discovered thallium; invented the radiometer and studied cathode rays (1832-1919)

Other synonyms of Sir William Crookes include Crookes.

Sir William Crookes (noun)	William Crookes (noun)
English chemist and physicist; discovered thallium; invented the radiometer and studied cathode rays (1832-1919)	English chemist and physicist; discovered thallium; invented the radiometer and studied cathode rays (1832-1919)