A strong need for food, drink, people, or other things, which is extremely hard to resist.

a very hard thing to break

a very serious thing, and I don't want politicians comparing me to a drug dealing junkie because I decided I liked Neverwinter Nights enough to tell my friends they should buy a copy

(Roman law) a formal award by a court sentence of a thing or person to another (as of a debtor to his creditor); a surrender to a master; "under Roman law addiction was the justification for slavery"

an uncontrollably strong longing for something - an abnormal kinky obsession for things

a terrible thing