is one way for people to communicate face-to-face.  Some of the key components of verbal communication are sound, words, speaking, and language

is a clear expression of ideas in writing; includes grammar, organization, and structure.

is a channel for the relay for sensory and motor impulses between on the one hand and body surface and internal organs on the other.

is a language unit, which is able to serve speech functions listening and understanding oral speech

is the absorption of the meanings of words and sentences by the brain

is when the character may be speaking his or her thoughts aloud, directly addressing another character, or speaking to the audience, especially the former. 

is a literary and theatrical form consisting of a written or spoken conversational exchange between two or more people.

refers to the way a word or a language is spoken, or the manner in which someone utters a word. If one is said to have "correct pronunciation", then it refers to both within a particular dialect.

is a mechanical wave that is an oscillation  of pressure  transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.

(from the Greek: φώνημα, phōnēma, "a sound uttered") is the smallest segmental unit of sound employed to form meaningful contrasts between utterances

studies children's ability to learn language.

(ὄντος, ontos present participle of 'to be', genesis 'creation') describes the origin and the development of an organism from the fertilized egg to its mature form. 

structurally organized sound production of a child

is made up of words that come to our mind immediately when we have to use them in a sentence, as we speak.

a rough grouping of words person understands when hears them