Double sharp and Double-edged

Double sharp noun - A musical notation of two sharps in front of a note indicating that it is to be raised by two semitones.

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

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

Double sharp and double-edged are semantically related. You can use "Double sharp" instead an adjective phrase "Double-edged".