needlework vs knitwork

needlework and knitwork both are nouns.

Word	Noun	Adjective	Verb	Adverb
needlework	Yes	No	No	No
knitwork	Yes	No	No	No

As nouns, knitwork is a hyponym of needlework; that is, knitwork is a word with a more specific, narrower meaning than needlework:

needlework: a creation created or assembled by needle and thread
knitwork: needlework created by interlacing yarn in a series of connected loops using straight eyeless needles or by machine

Other hyponyms of needlework include crochet, crocheting, embroidery, fancywork, knit, knitting, sewing, stitchery, tatting.

needlework (noun)	knitwork (noun)
work (such as sewing or embroidery) that is done with a needle	needlework created by interlacing yarn in a series of connected loops using straight eyeless needles or by machine
a creation created or assembled by needle and thread