sigh vs stomachache

sigh

noun
  • a manifestation of grief; a lament. 

  • A person who is bored. 

  • A deep, prolonged audible inhale and exhale of breath; as when fatigued, frustrated, grieved, or relieved; the act of sighing. 

verb
  • To inhale a larger quantity of air than usual, and immediately expel it; to make a deep single audible respiration, especially as the result or involuntary expression of fatigue, exhaustion, grief, sorrow, frustration, or the like. 

  • To utter sighs over; to lament or mourn over. 

  • To exhale (the breath) in sighs. 

  • To express by sighs; to utter in or with sighs. 

  • To lament; to grieve. 

  • To make a sound like sighing. 

intj
  • An expression of fatigue, exhaustion, grief, sorrow, frustration, or the like, often used in casual written contexts. 

stomachache

noun
  • A pain in the abdomen, often caused by indigestion. (The pain is usually lower than the stomach and related to the intestines.) 

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