Air wing (CVW-#) = naval f(e)a-18c,e,f,g/e-2/c-2/helo squadrons (often assigned to a certain carrier)
Carrier (CVN-#) - ship itself
Destroyer Squadron (DESRON-#) - approx 3-? Destroyers (DDG-#) sometimes includes Cruisers (CG-#)
All those combined = Carrier Strike Group
(CSG-#)