goliath vs colossus

goliath and colossus both are nouns.

Word	Noun	Adjective	Verb	Adverb
goliath	Yes	No	No	No
colossus	Yes	No	No	No

As nouns, goliath and colossus are synonyms defined as:

Other synonyms of goliath include behemoth, giant, monster.

goliath (noun)	colossus (noun)
someone that is abnormally large and powerful	someone that is abnormally large and powerful
	a person of exceptional importance and reputation