Silence is the lack of audible sound or presence of sounds of very low intensity. By analogy, the word silence can also refer to any absence of communication or hearing, including in media other than speech and music. Silence is also used as total communication, in reference to nonverbal communication and spiritual connection. Silence also refers to no sounds uttered by anybody in a room or area. Silence is an important factor in many cultural spectacles, as in rituals.
In discourse analysis, speakers use brief absences of speech to mark the boundaries of prosodic units. Silence in speech can be due to hesitation, stutters, self-correction—or a deliberate slowing of speech to clarify or aid the processing of ideas. These are short silences. Longer pauses in language occur in interactive roles, reactive tokens, or turn-taking.
According to cultural norms, silence can be positive or negative. For example, in a Christian Methodist faith organization, silence and reflection during the sermons might be appreciated by the congregation, while in a Southern Baptist church, silence might mean disagreement with what is being said, or perhaps disconnectedness from the congregated community.
Music inherently depends on silence in some form or another to distinguish other periods of sound and allow dynamics, melodies and rhythms to have greater impact. For example, most music scores feature rests denoting periods of silence. In addition, silence in music can be seen as a time for contemplation to reflect on the piece. The audience feels the effects of the notes previous and can reflect on that moment intentionally. Silence does not hinder musical excellence but can enhance the sounds of instruments and vocals within the piece.
In his book Sound and Silence (1970, p61) the composer John Paynter says that "the dramatic effect of silence has long been appreciated by composers." He gives as an example "the general pause in the middle of the chorus ‘Have lightnings and thunders …’ in Bach’s St. Matthew Passion":