duodecimal digit vs digit

duodecimal digit and digit both are nouns.

Word	Noun	Adjective	Verb	Adverb
duodecimal digit	Yes	No	No	No
digit	Yes	No	No	No

As nouns, digit is a hypernym of duodecimal digit; that is, digit is a word with a broader meaning than duodecimal digit:

Other hypernyms of duodecimal digit include figure.

duodecimal digit (noun)	digit (noun)
a digit from 0 to 11 in duodecimal notation	a finger or toe in human beings or corresponding body part in other vertebrates
	one of the elements that collectively form a system of numeration
	the length of breadth of a finger used as a linear measure