deathblow (n.)

• bane
• beating
• clincher
• collapse
• conquering
• conquest
• crash
• crusher
• death
• debacle
• defeat
• destruction
• doom
• downfall
• drubbing
• end
• end-all
• ender
• failure
• fall
• fate
• finisher
• hiding
• kayo
• knockout
• licking
• mastery
• overthrow
• overturn
• quietus
• ruin
• settler
• smash
• stopper
• subjugation
• thrashing
• trimming
• trouncing
• undoing
• whipping