remodel vs round off

remodel

verb
  • To change the appearance, layout, or furnishings of. 

noun
  • Synonym of remodeling 

round off

verb
  • To change the shape of (an object) to make it smoother and especially more circular or ovoid. 

  • To complete or finish something. 

  • To change a number into an approximation having fewer significant digits. 

How often have the words remodel and round off occurred in a corpus of books? (source: Google Ngram Viewer )