lover's knot vs lovers' knot

lover's knot and lovers' knot both are nouns.

Word	Noun	Adjective	Verb	Adverb
lover's knot	Yes	No	No	No
lovers' knot	Yes	No	No	No

As nouns, lover's knot and lovers' knot are synonyms defined as:

lover's knot and lovers' knot: a stylized or decorative knot used as an emblem of love

Other synonyms of lover's knot include love knot, true lover's knot, true lovers' knot.

lover's knot (noun)	lovers' knot (noun)
a stylized or decorative knot used as an emblem of love	a stylized or decorative knot used as an emblem of love