Ma'anar ƙamus na kalmar "bayyana" ita ce sanar da wani abu ko tallata wani abu ga jama'a ta hanyar kafofin watsa labaru ko sadarwa daban-daban. Yana nufin aikin raba bayanai game da wani taron, samfur, ko sabis tare da jama'a don samar da sha'awa, tallatawa, ko wayar da kan jama'a. Hakanan za'a iya amfani da kalmar don bayyana watsa bayanai ko labarai ga sauran jama'a, kamar ta hanyar tallace-tallace, sakin jarida, ko dandamali na kafofin watsa labarun.