Clyde Tombaugh vs Tombaugh

Clyde Tombaugh and Tombaugh both are nouns.

Word	Noun	Adjective	Verb	Adverb
Clyde Tombaugh	Yes	No	No	No
Tombaugh	Yes	No	No	No

As nouns, Clyde Tombaugh and Tombaugh are synonyms defined as:

Clyde Tombaugh and Tombaugh: United States astronomer who discovered the planet Pluto (1906-1997)

Other synonyms of Clyde Tombaugh include Clyde William Tombaugh.

Clyde Tombaugh (noun)	Tombaugh (noun)
United States astronomer who discovered the planet Pluto (1906-1997)	United States astronomer who discovered the planet Pluto (1906-1997)