quilting vs embroidery stitch

quilting and embroidery stitch both are nouns.

Word	Noun	Adjective	Verb	Adverb
quilting	Yes	No	No	No
embroidery stitch	Yes	No	No	No

As nouns, embroidery stitch is a hypernym of quilting; that is, embroidery stitch is a word with a broader meaning than quilting:

quilting: stitching through layers of fabric and a filling so as to create a design
embroidery stitch: a stitch made with thread and a threaded sewing needle through fabric or leather

Other hypernyms of quilting include sewing stitch.

quilting (noun)	embroidery stitch (noun)
a material used for making a quilt, or a quilted fabric	a stitch made with thread and a threaded sewing needle through fabric or leather
stitching through layers of fabric and a filling so as to create a design