copyreader vs text editor

copyreader and text editor both are nouns.

Word	Noun	Adjective	Verb	Adverb
copyreader	Yes	No	No	No
text editor	Yes	No	No	No

As nouns, copyreader and text editor are synonyms defined as:

Other synonyms of copyreader include copy editor.

copyreader (noun)	text editor (noun)
an editor who prepares text for publication	(computer science) an application that can be used to create and view and edit text files
	an editor who prepares text for publication