Enunciation

Overview
In phonetics, enunciation is the act of speaking. Good enunciation is the act of speaking clearly and concisely. The opposite of good enunciation is mumbling, slurring, or bad enunciation.

Annunciate is to specifically communicate. An annunciator panel on a piece of equipment or aircraft console communicates to the pilot or operator the status of the equipment. There are visual annunciators and auditory annunciators such as fire alarm enunciators that flash lights and light bells