weft vs filling

weft and filling both are nouns.

Word	Noun	Adjective	Verb	Adverb
weft	Yes	No	No	No
filling	Yes	No	No	No

As nouns, weft and filling are synonyms defined as:

Other synonyms of weft include pick, woof.

weft (noun)	filling (noun)
the yarn woven across the warp yarn in weaving	the act of filling something
	the yarn woven across the warp yarn in weaving
	(dentistry) a dental appliance consisting of any of various substances (as metal or plastic) inserted into a prepared cavity in a tooth
	a food mixture used to fill pastry or sandwiches etc.
	flow into something (as a container)
	any material that fills a space or container