1. (noun) destruction by annihilating something

• annihilation

2. (noun) the complete destruction of every trace of something

• eradication

1. (noun) destruction by annihilating something

• atomisation
• atomization
• pulverisation
• pulverization
• vaporisation
• vaporization

1. (noun) destruction by annihilating something

• destruction
• devastation

2. (noun) the complete destruction of every trace of something

• demolition
• destruction
• wipeout

1. (noun) destruction by annihilating something

• annihilate
• carry off
• decimate
• eliminate
• eradicate
• extinguish
• wipe out
• efface
• obliterate
• obliterate

2. (noun) the complete destruction of every trace of something

• efface
• obliterate
• eradicate
• exterminate
• extirpate
• root out
• uproot
• kill
• obliterate
• wipe out
• obliterate