A cabane strut is a rigid brace (not a wire or cable) which is used to attach a separated airfoil of an airplane to the main fuselage. They are mostly seen in biplanes, where the upper wing is almost never directly attached to the fuselage itself but crosses above it. The rigid members which directly connect the upper and lower wing are called interplane struts, but any bracing member which connects the fuselage to a (separated) wing is a cabane strut. In rare cases, some monoplane aircraft have their single wing mounted above and separate from the fuselage - these are called parasol winged aircraft - and their wing is also connected to the fuselage with a cabane strut.
(IN5 2/30)