seven vs week

seven

noun
  • The digit/figure 7 or an occurrence thereof. 

  • A card bearing seven pips. 

num
  • A numerical value equal to 7; the number following six and preceding eight. This many dots: (•••••••). Describing a group or set with seven elements. 

week

noun
  • Any period of seven consecutive days. 

  • A period of five days beginning with Monday. 

  • A subdivision of the month into longer periods of work days punctuated by shorter weekend periods of days for markets, rest, or religious observation such as a sabbath. 

  • A period of seven days beginning with Sunday or Monday. 

adj
  • Seven days after (sometimes before) a specified date. 

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