milcher vs milker

milcher and milker both are nouns.

Word	Noun	Adjective	Verb	Adverb
milcher	Yes	No	No	No
milker	Yes	No	No	No

As nouns, milcher and milker are synonyms defined as:

Other synonyms of milcher include dairy cattle, dairy cow, milch cow, milk cow.

milcher (noun)	milker (noun)
cattle that are reared for their milk	cattle that are reared for their milk