lovers' knot vs lover's knot

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

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

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

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

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

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