Speech is how we say sounds and words. Speech includes:
How we make speech sounds using the mouth, lips, and tongue. For example, we need to be able to say the “r” sound to say "rabbit" instead of "wabbit.”
How we use our vocal folds and breath to make sounds. Our voice can be loud or soft or high- or low-pitched. We can hurt our voice by talking too much, yelling, or coughing a lot.
This is the rhythm of our speech. We sometimes repeat sounds or pause while talking. People who do this a lot may stutter.