Sound is defined as "(a) Oscillation in pressure, stress, particle displacement, particle velocity, etc., propagated in a medium with internal forces (e.g., elastic or viscous), or the superposition of such propagated oscillation. (b) Auditory sensation evoked by the oscillation described in (a)." Muqombhoti wu swekiwa hi ku sungula u tlhokola mavele, u tshivela ndzilo, kutani u tseleka poto ra mati ri khihlanyana. Loko mati ya vila musweki u nusa mugayo hi xiphaho a chela endzeni ka xirhundzu xi tala,kutani a ya chela endzeni ka xihari/diromu kutani a nusa comela hi xiphaho a chela endzeni ka xihari/diromu. Musweki u ka mati yo vila a cheletela endzeni ka diromu leri anga chela mugayo na comela, kutani musweki a teka mhandze a hakasela. Musweki u cheletela mati lawa a ri karhi a hakasa ku kondza swi vevuka ku fana na bilila/dini. By 1973, the government regarded Black Consciousness as a threat. It sought to disrupt Biko's activities, and in March 1973 placed a banning order on him. This prevented him from leaving the King William's Town magisterial district, prohibited him from speaking either in public or to more than one person at a time, barred his membership of political organisations, and forbade the media from quoting him. As a result, he returned to Ginsberg, living initially in his mother's house and later in his own residence.