true lover's knot vs love knot

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

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

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

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

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

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