What is the best description of the word drug?

Depending on what you're using the word for- you can say a drug is a medication, or you can say it's an illegal substance

the best description of the word drug a drug is a drug or prescription that is given to u and is used a lot as a matter of fact over use of it all the time it could damage your body hurt you or even kill u thats my definition of a drug

Explanation:

answer; more than 80% percent of adults;

answer; (c); /out to the side and directly under the dogs neck.