element 105 vs dubnium

element 105 and dubnium both are nouns.

Word	Noun	Adjective	Verb	Adverb
element 105	Yes	No	No	No
dubnium	Yes	No	No	No

As nouns, element 105 and dubnium are synonyms defined as:

Other synonyms of element 105 include atomic number 105, Db, hahnium.

element 105 (noun)	dubnium (noun)
a transuranic element with atomic number 105	a transuranic element with atomic number 105