Enunciate (verb)

1. To speak or say (something) clearly and distinctly.
2. To express or state (something) clearly and distinctly.

Origin:

From latin enuntiāre, from e- "out" + nuntiāre "to announce".

Examples:

1. She enunciated each word clearly.
2. The speaker enunciated his message with conviction.
3. He enunciated the theory in simple terms.
4. The singer enunciated each syllable of the lyrics.
5. The teacher enunciated the rules of the game.