built-in vs lot

built-in

noun
  • Anything (such as a piece of furniture, or a software feature) that is built in, not added as an extra. 

adj
  • Being an essential and permanent part of something. 

  • Being an included feature that normally comes as an extra. 

  • Constructed as a non-detachable part of a larger structure. 

lot

noun
  • That which happens without human design or forethought. 

  • One or more items auctioned or sold as a unit, separate from other items. 

  • A large quantity or number; a great deal. 

  • Anything (as a die, pebble, ball, or slip of paper) used in determining a question by chance, or without human choice or will. 

  • A number of people taken collectively. 

  • A distinct portion or plot of land, usually smaller than a field. 

  • A separate portion; a number of things taken collectively. 

  • A prize in a lottery. 

  • Allotment; lottery. 

  • An old unit of weight used in many European countries from the Middle Ages, often defined as 1/30 or 1/32 of a (local) pound. 

  • All members of a set; everything. 

  • The part, or fate, that falls to one, as it were, by chance, or without one's planning. 

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