Double-barrelled and Double-edged

Double-barrelled adjective - Having two barrels mounted side by side.

Double-edged and double-barrelled are semantically related. In some cases you can use "Double-edged" instead an adjective phrase "Double-barrelled".

Double-edged adjective - Consisting of two members or parts that are usually joined.

Double-barrelled and double-edged are semantically related. Sometimes you can use "Double-barrelled" instead an adjective phrase "Double-edged".