drawstring vs drawing string

drawstring and drawing string both are nouns.

Word	Noun	Adjective	Verb	Adverb
drawstring	Yes	No	No	No
drawing string	Yes	No	No	No

As nouns, drawstring and drawing string are synonyms defined as:

drawstring and drawing string: a tie consisting of a cord that goes through a seam around an opening

Other synonyms of drawstring include string.

drawstring (noun)	drawing string (noun)
a tie consisting of a cord that goes through a seam around an opening	a tie consisting of a cord that goes through a seam around an opening