dedication vs faithfulness

dedication and faithfulness both are nouns.

Word	Noun	Adjective	Verb	Adverb
dedication	Yes	No	No	No
faithfulness	Yes	No	No	No

As nouns, faithfulness is a hypernym of dedication; that is, faithfulness is a word with a broader meaning than dedication:

Other hypernyms of dedication include fidelity.

dedication (noun)	faithfulness (noun)
the act of binding yourself (intellectually or emotionally) to a course of action	the quality of being faithful
complete and wholehearted fidelity
a short message (as in a book or musical work or on a photograph) dedicating it to someone or something
a message that makes a pledge
a ceremony in which something (as a building) is dedicated to some goal or purpose