true lovers' knot vs true lover's knot

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

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

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

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

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

true lovers' knot (noun)	true 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
	a knot for tying the ends of two lines together