• (British) IPA: /əˈnaɪə.leɪt/

annihilate (annihilates, present participle annihilating; past and past participle annihilated)

1. To reduce to nothing, to destroy, to eradicate.

   An atom bomb can annihilate a whole city.

2. (particle physics) To react with antimatter, producing gamma radiation.
3. (archaic) To treat as worthless, to vilify.
   • 1603, Michel de Montaigne, chapter 17, in John Florio, transl., The Essayes, […], book II, printed at London: By Val[entine] Simmes for Edward Blount […], OCLC 946730821 ↗:

     of all the opinions which Antiquity hath had of men in gross, those which I most willingly embrace, and whereon I take most hold, are such as most vilifie, condemne, and annihilate us.

4. (transitive) To render null and void; to abrogate.

• (to reduce to nothing) benothing, destroy, eradicate, extinguish
• See also Thesaurus:destroy

• (to reduce to nothing) create, generate

• French: annihiler, anéantir
• German: vernichten
• Italian: annichilire, annientare
• Portuguese: aniquilar
• Russian: уничтожа́ть
• Spanish: aniquilar, anihilar (rare)

• Portuguese: aniquilar
• Russian: аннигилировать