EXPAND

verb see: fathom Date: 15th century transitive verb to open up ; unfold , to increase the extent, number, volume, or scope of ; enlarge , 3. to express at length or in greater detail, to write out in full , to subject to mathematical expansion , intransitive verb to open out ; spread , to increase in extent, number, volume, or scope, to speak or write fully or in detail , to feel generous or optimistic, ~ability noun ~able adjective Synonyms: see: ~