least vs opening

least

noun
  • Something of the smallest possible extent; an indivisible unit. 

adv
  • Used for forming superlatives of adjectives, especially those that do not form the superlative by adding -est. 

  • In the smallest or lowest degree; in a degree below all others. 

det
  • The most little; the smallest amount or quantity of something. 

prep
  • At least. 

  • What a stupid white privileged POS I am! Least I call myself out. 

  • 2019 December, Justin Blackburn, The Bisexual Christian Suburban Failure Enlightening Bipolar Blues, page 79 

opening

noun
  • The first few measures of a musical composition. 

  • The first performance of a show or play by a particular troupe. 

  • A gap permitting passage through. 

  • The initial period when a show at an art gallery or museum is first opened, especially the first evening. 

  • A vacant position, especially in an array. 

  • An unoccupied employment position. 

  • In mathematical morphology, the dilation of the erosion of a set. 

  • An act or instance of making or becoming open. 

  • A time available in a schedule. 

  • An opportunity, as in a competitive activity. 

  • An act or instance of beginning. 

  • The first few moves in a game. 

adj
  • Pertaining to the start or beginning of a series of events. 

  • describing the first period of play, usually up to the fall of the first wicket; describing a batsman who opens the innings or a bowler who opens the attack 

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