last vs number one

last

adj
  • Supreme; highest in degree; utmost. 

  • Being the only one remaining of its class. 

  • Farthest of all from a given quality, character, or condition; most unlikely, or least preferable. 

  • Lowest in rank or degree. 

  • Most recent, latest, last so far. 

  • Final, ultimate, coming after all others of its kind. 

adv
  • Most recently. 

  • after everything else; finally 

det
  • The (one) immediately before the present. 

  • Closest in the past, or closest but one if the closest was very recent; of days, sometimes thought to specifically refer to the instance closest to seven days (one week) ago, or the most recent instance before seven days (one week) ago. 

noun
  • A tool for shaping or preserving the shape of shoes. 

  • A load of some commodity with reference to its weight and commercial value. 

verb
  • To hold out, continue undefeated or entire. 

  • To shape with a last; to fasten or fit to a last; to place smoothly on a last. 

  • To endure, continue over time. 

number one

adj
  • First; foremost; best, often used after its headword. 

noun
  • The main goalkeeper of a team, so-called because they wear the number 1 on the back of their kit. 

  • The most important person, the one who is in charge. 

  • Urine; urination. 

  • A large town where theatrical performances may expect to achieve success. 

  • Used other than figuratively or idiomatically: see number, one. 

  • Oneself, being considered foremost, as by an egoist. 

  • Someone who is top of a ranking, who is ranked first. 

  • The batsman who opens the batting. 

  • The single that has sold the most in a given period. 

  • A first lieutenant. 

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