(physics) The longitudinal wave of pressure that is transmitted through any plastic material; audible sound.

(film, television) A soundproof room or building used for the production of movies or of television programmes.

(idiomatic) Sleeping still and silently.

(music) A subgenre of country music that became popular in the 1950s and 1960s, containing elements of popular music and characterized by electronic string sections, background vocals, and orchestras.

A style of country music developed and popularized during the 1950s and 1960s, featuring Fender Telecaster guitars, a drum backbeat, fiddles and steel guitars, along with stylistic touches from rock music.

(physics) A wave of fluctuating temperature or entropy propagated in the superfluid phase of liquid helium

A thin board that forms part of the resonating chamber of a musical instrument and serves to reinforce its sound / A structure that reflects sound towards the intended listeners

An artificially created or enhanced sound, used to accompany the action of a dramatic production, such as a film, play or video game

To hold forth about something in an opinionated manner. / (military) Command instructing a person to speak up or acknowledge something.

(physics) The energy present in a sound wave