basting stitch vs tacking

basting stitch and tacking both are nouns.

Word	Noun	Adjective	Verb	Adverb
basting stitch	Yes	No	No	No
tacking	Yes	No	No	No

As nouns, basting stitch and tacking are synonyms defined as:

basting stitch and tacking: a loose temporary sewing stitch to hold layers of fabric together

Other synonyms of basting stitch include baste, basting.

basting stitch (noun)	tacking (noun)
a loose temporary sewing stitch to hold layers of fabric together	(nautical) the act of changing tack
	a loose temporary sewing stitch to hold layers of fabric together