empty vs fill up

empty

verb
  • Of a river, duct, etc: to drain or flow toward an ultimate destination. 

  • To make empty; to void; to remove the contents of. 

noun
  • A container, especially a bottle, whose contents have been used up, leaving it empty. 

adj
  • Containing no elements (as of a string, array, or set), opposed to being null (having no valid value). 

  • Not pregnant; not producing offspring when expected to do so during the breeding season. 

  • Destitute of reality, or real existence; unsubstantial. 

  • Destitute of, or lacking, sense, knowledge, or courtesy. 

  • Unable to satisfy; hollow; vain. 

  • Destitute of effect, sincerity, or sense; said of language. 

  • Devoid of content; containing nothing or nobody; vacant. 

  • Having nothing to carry, emptyhanded; unburdened. 

fill up

verb
  • To make a full house on the turn or the river. 

  • To satisfy the hunger of (someone). 

  • To annoy, or displease, by taunting, or by excessive nagging. 

  • To fill the tank of a vehicle with fuel. 

  • To become completely full. 

  • To make (something) completely full. 

  • To become tearful as a result of strong emotion. 

  • To fill in / fill out a form etc. 

  • To satisfy one's hunger; to stop being hungry. 

How often have the words empty and fill up occurred in a corpus of books? (source: Google Ngram Viewer )