basting vs tacking

basting and tacking both are nouns.

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

As nouns, basting and tacking are synonyms defined as:

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

Other synonyms of basting include baste, basting stitch.

basting (noun)	tacking (noun)
moistening a roast as it is cooking	(nautical) the act of changing tack
a loose temporary sewing stitch to hold layers of fabric together	a loose temporary sewing stitch to hold layers of fabric together