true lovers' knot vs love knot

true lovers' knot and love knot both are nouns.

Word	Noun	Adjective	Verb	Adverb
true lovers' knot	Yes	No	No	No
love knot	Yes	No	No	No

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

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

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

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