1.
You use ~ when you want to make a final point, ask a final question, or mention a final item that is connected with the other ones you have already asked or mentioned.
Lastly, I would like to ask about your future plans...
= finally
ADV: ADV with cl/group
2.
You use ~ when you are saying what happens after everything else in a series of actions or events.
They wash their hands, arms and faces, and ~, they wash their feet.
= finally
ADV: ADV cl