civilian clothing vs civilian garb

civilian clothing and civilian garb both are nouns.

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

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

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

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

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