transparency is a public of an preposition and includes ordered congestion of opaque / translucent / transparent
lens is not piece_of_transparent_material. privacy is isolation. lens is piece_of_transparent_material. transparency is clearness. opaque_covering is opaque_thing. transparency is physical_phenomenon. transparency is not clearness. secrecy is not uncommunicativeness. almost_transparent is tangible_thing. secrecy is uncommunicativeness.