An improv piece is a type of performance art that involves improvisation, or making up dialogue and actions on the spot. The three solutions for the term 'IMPROV PIECE' are BIT (3 letters), SKIT (4 letters), and COMEDYSKETCH (12 letters). A BIT is a short comedic routine, usually involving one or two people. A SKIT is a short comedic play, often involving multiple characters. A comedysketch is a longer comedic play, usually involving multiple characters and more elaborate set pieces.