Inflection
The inflection of certain words can change this in a sentence.
What is interpretation?
You use this body part to take deep breathes.
What is the diaphragm?
This is one of two listed benefits of inflection.
What is reinforcement?
You are encouraged to open this as wide as you can then purse your lips.
What is your mouth.
What is emphasizing different words while speaking?
What is inflection?
This pitch should be maintained to avoid sounding nasally?
What is low pitch?