periwinkle vs sex

periwinkle

noun
  • Similar plants of genus Catharanthus. 

  • A color with bluish and purplish hues, somewhat light. 

  • Any of several evergreen plants of the genus Vinca with blue or white flowers. 

  • A mollusk of family Littorinidae. 

adj
  • Of pale bluish purple colour. 

sex

noun
  • A category into which sexually-reproducing organisms are divided on the basis of their reproductive roles in their species. 

  • Genitalia: a penis or vagina. 

  • Another category, especially of humans and especially based on sexuality or gender roles. 

  • The distinction and relation between these categories, especially in humans; gender. 

  • The members of such a category, taken collectively. 

  • Sexual activity, usually sexual intercourse unless preceded by a modifier. 

verb
  • To determine the sex of (an animal). 

  • To have sex with. 

  • To have sex. 

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