What does addiction look like to you?

It's an interesting concept when for example the NHS says for alcohol
keep health risks from alcohol to a low level it is safest not to drink more than 14 units a week on a regular basis. if you regularly drink as much as 14 units per week, it is best to spread your drinking evenly over 3 or more days.
Which is basically 14 units is equivalent to 6 pints of average-strength beer or 10 small glasses of lower-strength wine.

So using that as a guide how would you determine an addiction?