pianissimo /pya-nēsˈsi-mō or pē-ə-nisˈi-mō/ adjective and adverb (music)

Very soft

A very soft passage

pianississimo /pya-nē-sisˈi-mō or pē-ə-ni-sisˈi-mō/ adjective and adverb (music)

As soft or softly as possible

pianist /pēˈə-nist or pyanˈist (also pē-anˈist)/ noun

A person who plays the piano, esp expertly (also (French) pianiste /pē-a-nēstˈ/ sometimes used as fem)

pianistˈic adjective

Of or relating to pianism or a pianist

pianistˈically adverb

pianoforte noun

A piano (see above)

Soft, then loud

Pianola® /pya-nōˈlə or pē-ə-/ noun

A mechanical, playerless piano with keys operated by air pressure, the sequence determined by the pattern of perforations in a removable paper roll (a piano roll)

pianoˈlist noun

piano accordion noun

A sophisticated type of accordion with a keyboard like that of a piano

piano organ noun

A piano like a barrel organ, played by mechanical means

pianˈo-playˈer noun

1. A pianist
2. A mechanical contrivance for playing the piano

piano roll noun see Pianola® above.

pianˈo-school noun

1. A school where piano-playing is taught
2. A method or book of instruction for the piano

piano stool noun

A stool for a pianist, usu adjustable in height, and often hollow for storing sheet music

piano wire noun

Wire used for piano strings, and for deep-sea soundings, etc

player piano

A Pianola