4G Syllabification: (4G)Definition of 4G noun a mobile communications standard intended to replace 3G, allowing wireless Internet access at a much higher speed:they recently announced that the newest iPad will support 4G [as modifier]:when a 4G phone can’t find a 4G network, it falls back on 3GOrigin: 1990s: abbreviation of fourth generation4G in other Oxford dictionaries Definition of 4G in the British & World English dictionary
