noun
plural -vices
[count] an object, machine, or piece of equipment that has been made for some special purpose
a weapon that explodes
something that is done in order to achieve a particular effect
something in a book, play, poem, movie, etc., that is used to achieve a particular effect
leave you to your own devices
If someone leaves you to your own devices or you are left to your own devices, you are allowed to do what you want or what you are able to do without being controlled or helped by anyone else.