pianissimo vs fortissimo

pianissimo and fortissimo both are nouns.

Word	Noun	Adjective	Verb	Adverb
pianissimo	Yes	Yes	No	Yes
fortissimo	Yes	Yes	No	Yes

pianissimo (noun)	fortissimo (noun)
(music) low loudness	a musical composition or musical passage to be performed very loudly

pianissimo (adjective)	fortissimo (adjective)
(chiefly a direction or description in music) very soft	(chiefly a direction or description in music) very loud and strong

pianissimo (adverb)	fortissimo (adverb)
a direction in music; to be played very softly	a direction in music; to be played very loudly