The crossword solutions for the term PLUTO are HADES (5 letters), CHARON (6 letters), DIS (3 letters), CARTOONCANINE (13 letters), UNDERWORLDGOD (13 letters), MICKEYMOUSESDOG (15 letters), OUTERMOSTPLANET (15 letters), and WALTDISNEYPOOCH (15 letters). HADES is the Greek god of the underworld, CHARON is the ferryman of HADES, and DIS is another name for HADES. Cartooncanine, underworldgod, and mickeymousesdog all refer to Pluto, the cartoon dog created by Walt Disney in 1930 who is the pet of Mickey Mouse. Outermosplanet refers to Pluto's status as the outermost planet in the solar system, and Waltdisneypooch is another reference to Pluto as a Walt Disney character.