The term 'modal voice' refers to the natural speaking voice of an individual. However, there are several synonyms that can be used in place of this term. One alternative is 'chest voice', which describes the lower range of the voice where the vibrations are felt in the chest. 'Full voice' is another option, which refers to the optimal use of the speaking voice with a balance of breath support and vocal tone. 'Normal voice' can also be used to describe the modal voice, which is the tone and pitch at which a person typically speaks in everyday conversation. Other terms used to convey the meaning of modal voice include 'comfortable voice' and 'natural voice'.