diacritic vs cedilla

diacritic and cedilla both are nouns.

Word	Noun	Adjective	Verb	Adverb
diacritic	Yes	Yes	No	No
cedilla	Yes	No	No	No

As nouns, cedilla is a hyponym of diacritic; that is, cedilla is a word with a more specific, narrower meaning than diacritic:

diacritic: a mark added to a letter to indicate a special pronunciation
cedilla: a diacritical mark (,) placed below the letter c to indicate that it is pronounced as an s

Other hyponyms of diacritic include accent, accent mark, breve, circumflex, hacek, wedge, macron, tilde, umlaut, diaeresis, dieresis.

diacritic (noun)	cedilla (noun)
a mark added to a letter to indicate a special pronunciation	a diacritical mark (,) placed below the letter c to indicate that it is pronounced as an s

diacritic (adjective)	cedilla (adjective)
capable of distinguishing