**Particle Annihilator**: A particle that causes annihilation of matter.

**Annihilator in Mathematics**: An operator nullifying a given function or element.

**Philosophical Annihilators**: Concepts leading to existential negation or nothingness.

**Chemical Annihilators**: Substances causing complete breakdown of compounds.

**Cultural/Ideological Annihilators**: Forces erasing cultural identities and beliefs.

**Theoretical Physics Contexts**: Entities involved in theoretical destruction processes, like black holes.