it's not semantics. there's a useful distinction between addiction and dependence. dependence is the tolerance/withdrawal cycle. it doesn't necessarily coincide with the cravings that are characteristic of addiction. someone on pain meds for a broken leg may never think of them again once the treatment ends. it doesn't make sense to consider/treat them as an addict. conversely, a gambling addict is more similar to a heroin addict than a typical PM patient.