Annihilate, a verb that means “to smash totally,” has a number of approved pronunciations. The most typical pronunciation is uh-NAE-uh-layt. Different appropriate 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 can also be complicated in your listeners.
