If you have stayed in the same place for six months?

Don't think there's a precise definition of "lived there". It could be as simple as slept there. But the more time one spends in a place the more one gets to know it. 2 weeks is a different experience than 1. 5 years is different than 2 years. And 50 years is different than 20.

Sure, if you've stayed in one place you can say you live there. But are you really asking if you've established a legal definition of "residency"? Are you paying rent at your location? Paying for utilities? Is you mail being delivered there? Are you working in the community? Do you have a library card? All things that point to being a resident of a location.

YES ABSOLUTELY. If you lived there one month at a residence that you actually lived there, then YES you can claim you lived there your last residence according to the Federal Postal Service. Mike

the day you move into a place is the day you can claim you live there. you might not really feel like you live there until a while later though

If in a state there is a minimum amount of time for residency which is the most important thing. Especially if it is for in-state tuition at a University.

Sure you can. You did live there for 6 months.

No, just after 9 months.

Yes.