true lover's knot vs true lovers' knot

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

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

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

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

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

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