The term 'Pal of Picasso' can be summarized by two crossword solutions: AMIGO (5 letters) and Matisse (7 letters). AMIGO is a Spanish word meaning friend, which was a fitting description for the close relationship between Pablo Picasso and his friend, Henri Matisse. Matisse was a French artist who was a major figure in the development of modern art in the early 20th century. He and Picasso were both influential figures in the art world, and their friendship was well-known.