German police dog vs alsatian

German police dog and alsatian both are nouns.

Word	Noun	Adjective	Verb	Adverb
German police dog	Yes	No	No	No
alsatian	Yes	No	No	No

As nouns, German police dog and alsatian are synonyms defined as:

German police dog and alsatian: breed of large shepherd dogs used in police work and as a guide for the blind

Other synonyms of German police dog include German shepherd, German shepherd dog.

German police dog (noun)	alsatian (noun)
breed of large shepherd dogs used in police work and as a guide for the blind	breed of large shepherd dogs used in police work and as a guide for the blind