Sublimation basically refers to the passage of molecules from the solid to gas state, without moving through a liquid state.
Sublimation ndi ndila ya u tou bva thwi ya madi ubva kha zwithu zwine zwa vha uri zwo oma (gwada la u rothola) u ya u vha gas (vapour) hu songo vha na u noka zwa fhedza zwi tshi khou vha zwiludi.