The term 'Bomb Sound' can be described by three different words: 'Kaboom' (6 letters), 'THUD' (4 letters), and 'BLAST' (5 letters). Kaboom is a loud, explosive sound that is often associated with bombs or other large explosions. THUD is a dull, heavy sound that is usually associated with something heavy hitting the ground. BLAST is a loud, powerful sound that is usually associated with an explosion. All three of these words are used to describe the sound of a bomb.