civilian garb vs civilian dress

civilian garb and civilian dress both are nouns.

Word	Noun	Adjective	Verb	Adverb
civilian garb	Yes	No	No	No
civilian dress	Yes	No	No	No

As nouns, civilian garb and civilian dress are synonyms defined as:

civilian garb and civilian dress: ordinary clothing as distinguished from uniforms, work clothes, clerical garb, etc.

Other synonyms of civilian garb include civilian clothing, plain clothes.

civilian garb (noun)	civilian dress (noun)
ordinary clothing as distinguished from uniforms, work clothes, clerical garb, etc.	ordinary clothing as distinguished from uniforms, work clothes, clerical garb, etc.