love line vs line of heart

love line and line of heart both are nouns.

Word	Noun	Adjective	Verb	Adverb
love line	Yes	No	No	No
line of heart	Yes	No	No	No

As nouns, love line and line of heart are synonyms defined as:

love line and line of heart: a crease on the palm; palmists say it indicates your emotional nature

Other synonyms of love line include heart line, mensal line.

love line (noun)	line of heart (noun)
a crease on the palm; palmists say it indicates your emotional nature	a crease on the palm; palmists say it indicates your emotional nature