It means it does not touch any other state. Alaska and Hawaii are independent states. The "continental US" and "lower 48" are terms used to refer to the contiguos US.
That would be Maine.
Contiguous means adjacent or sharing common borders.
Texas.
Texas.
Alaska and Hawaii.
Washington, Oregon and California
the answer is precisely Alaska and Hawaii!!
Texas does, by a long way.
Maine is the easternmost state.
Contiguous means very close so the opposite would be very far.
Texas is the largest of the lower 48 contiguos, but Alaska is the largest on the continent of North America