In reality, words are often used in ways that don't necessarily meet the dictionary definition in the strictest sense.

For example, I complained to my local advertising authority that mobile providers are using the word "unlimited" to mean "limited by our fair usage policy" and I was told that this is fine as long as 95% (I don't remember the exact percentage, maybe it was 99) of customers will never reach the limit so its effectively unlimited. That's not really what the english language word means, but hey... that's life. Same thing applies here: words are recycled to have different meanings.