In what context ? It does mean that you are no longer bound by the day to day conditions of the IVA (The Trust created by the arrangement usually still exists for things like future PPI claims). Whether you have finished successfukky of not depends on whether that word relates to a completion certificate or a Notice of Termination.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014 http://foggy.blogs.iva.co.uk