ill vs nightmare

ill

noun
  • Trouble; distress; misfortune; adversity. 

  • A physical ailment; an illness. 

  • Harm or injury. 

  • PCP, phencyclidine. 

  • Evil; moral wrongfulness. 

verb
  • To behave aggressively. 

adj
  • Unwell in terms of health or physical condition; sick. 

  • Sublime, with the connotation of being so in a singularly creative way. 

  • Indicative of unkind or malevolent intentions; harsh, cruel. 

  • Extremely bad (bad enough to make one ill). Generally used indirectly with to be. 

  • Having an urge to vomit. 

  • Unpropitious, unkind, faulty, not up to reasonable standard. 

adv
  • Not well; imperfectly, badly 

nightmare

noun
  • Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure. 

  • A very bad or frightening dream. 

  • A feeling of extreme anxiety or suffocation experienced during sleep; Sleep paralysis. 

verb
  • To have a nightmare. 

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