established or well-known or widely recognized as a model of authority or excellence | not standard; not accepted as a model of excellence |
conforming to or constituting a standard of measurement or value; or of the usual or regularized or accepted kind | varying from or not adhering to a standard |
conforming to the established language usage of educated native speakers | not conforming to the language usage of a prestige group within a community |
commonly used or supplied | |
regularly and widely used or sold | |