As verbs the difference between barge and scull
is that
barge is while
scull is to row a boat using a scull or sculls or
scull can be (australia|new zealand|slang) to drink the entire contents of (a drinking vessel) without pausing.
As a noun scull is
a single oar mounted at the stern of a boat and moved from side to side to propel the boat forward or
scull can be or
scull can be (obsolete) a shoal of fish or
scull can be the skua gull.