Annihilate, a verb which means “to smash totally,” has a number of permitted pronunciations. The commonest pronunciation is uh-NAE-uh-layt. Different applicable pronunciations come with uh-NIH-uh-layt and ah-NIH-uh-layt.
Regardless of which pronunciation you select, be constant. The usage of other pronunciations in the similar context will also be complicated in your listeners.
