sav·vy /ˈsævi/
adjective
shrewd, astute
“Anybody who says they are a good liar obviously is not, because any legitimately savvy liar would always insist they're honest about everything."
- Chuck Klosterman (1972 - ) noun know-how “There is a difference between having access to information and having the savvy it takes to interpret it." - Clifford Stoll (1950 -) verb to understand (slang) “When I want any scouting done before daylight I'll take care of it myself, savvy?" - Hopalong Cassidy (1911) by Clarence E. Mulford (1883 - 1956)