The term 'BULL SOUND' can be broken down into three crossword solutions: SNORT (5 letters), HORN (4 letters), and OLE (3 letters). A SNORT is a loud, sudden exhaling of breath through the nose, usually made by animals such as horses, pigs, and bulls. A HORN is a hard, pointed projection on the head of certain animals, such as cattle, sheep, and goats. An ole is a traditional Spanish song or dance, often accompanied by castanets and guitars. All three of these terms are related to the sound of a bull, whether it be a SNORT, a HORN, or an ole.