tenderness vs compassion

tenderness and compassion both are nouns.

Word	Noun	Adjective	Verb	Adverb
tenderness	Yes	No	No	No
compassion	Yes	No	No	No

As nouns, compassion is a hypernym of tenderness; that is, compassion is a word with a broader meaning than tenderness:

Other hypernyms of tenderness include compassionateness.

tenderness (noun)	compassion (noun)
a tendency to express warm and affectionate feeling	the humane quality of understanding the suffering of others and wanting to do something about it
a feeling of concern for the welfare of someone (especially someone defenseless)	a deep awareness of and sympathy for another's suffering
a positive feeling of liking
warm compassionate feelings
a pain that is felt (as when the area is touched)