A designation assigned a message by the originator to indicate to communication personnel the relative order of handling and to the addressee the order in which the message is to be noted.
Uyilo olubekelwe umyalezo ngumqalisi ukwenza umqondiso kumsebenzi wothungelwano ngendlela enxulumene nokuphathwa kwayo nendlela yokuwudlulisela kumthunyelwa.