peace vs heartsease

peace and heartsease both are nouns.

Word	Noun	Adjective	Verb	Adverb
peace	Yes	No	No	No
heartsease	Yes	No	No	No

As nouns, peace and heartsease are synonyms defined as:

Other synonyms of peace include ataraxis, peace of mind, peacefulness, repose, serenity.

peace (noun)	heartsease (noun)
a treaty to cease hostilities	the absence of mental stress or anxiety
the absence of mental stress or anxiety	common Old World viola with creamy often violet-tinged flowers
the state prevailing during the absence of war	violet of Pacific coast of North America having white petals tinged with yellow and deep violet
harmonious relations; freedom from disputes	a common and long cultivated European herb from which most common garden pansies are derived
the general security of public places