Solutions Great destruction or mass killing has 4 entries with similar clues

• 9-letter words
• atom-bombWeapon of mass destruction
• 10-letter words
• armageddonGreat conflict causing disaster and destruction
• apocalypseAn event involving great destruction
• 32-letter words
• the-temple-of-artemis-at-ephesusAlexander the Great rebuilt one of the Seven Wonders of the Ancient World after its destruction