vocal cord vs vocal fold

vocal cord and vocal fold both are nouns.

Word	Noun	Adjective	Verb	Adverb
vocal cord	Yes	No	No	No
vocal fold	Yes	No	No	No

As nouns, vocal cord and vocal fold are synonyms defined as:

vocal cord and vocal fold: either of two pairs of folds of mucous membrane projecting into the larynx

Other synonyms of vocal cord include plica vocalis, vocal band.

vocal cord (noun)	vocal fold (noun)
either of two pairs of folds of mucous membrane projecting into the larynx	either of two pairs of folds of mucous membrane projecting into the larynx