Sound Definitions

• Foley: of or relating to motion-picture sound effects produced manually.
• Diegetic Sound: sound whose source is visible on the screen or whose source is implied to be present by the action of the film.
• Non-Diegetic Sound: sound whose source is neither visible on the screen nor has been implied to present in the action.
• Pitch: to set a particular pitch, or determine the key or keynote of a melody.
• Rhythm: the effect produced in a play, film, novel etc., by the combination or arrangement of formal elements, as length of scenes, speech and description, timing, or recurrent themes, to create movement, tension, and emotional value in the development of the plot. 
• Sound Bridge: when the scene begins with the carry-over sound from the previous scene before the new sound begins.
• Sound Motif: a sound effect or combination of sound effects that are associated with a particular character, setting, situation or idea throughout the film.
• Score: a written or printed piece of music with all the vocal and instrumental parts arranged on staves, one under the other. Or it can be the music itself. Or the music played as background to or part of movie, play, or television presentation.
• Crescendo: a gradual, steady increase in loudness or force. Or a steady increase in force or intensity. Or the climatic point or movement in such an increase;peak.
• Ambient Sound: the background sound pressure level at a given location, normally specified as a reference level to study a new intrusive sound source. 
• Asynchronous Sound: sound which is indigenous to the action but not precisely synchronised with the action.
• Dialogue: conversation between two or more persons. Or the conversation between characters in a novel, drama etc. 
• Timbre: the characteristic quality of sound produced by a particular instrument or voice; tone colour. Or the character quality of a sound, independent of pitch and loudness, from which its source or manner or production can be inferred. Timbre depends on the relative strengths of the components of different frequencies, which are determined by resonance.
• Hyperbolic Sound: when you take a sound effect and over exaggerate it to make a point.