Deutsche Mark vs Deutschmark

Deutsche Mark and Deutschmark both are nouns.

Word	Noun	Adjective	Verb	Adverb
Deutsche Mark	Yes	No	No	No
Deutschmark	Yes	No	No	No

As nouns, Deutsche Mark and Deutschmark are synonyms defined as:

Deutsche Mark and Deutschmark: formerly the basic unit of money in Germany

Other synonyms of Deutsche Mark include German mark, mark.

Deutsche Mark (noun)	Deutschmark (noun)
formerly the basic unit of money in Germany	formerly the basic unit of money in Germany