closeout vs flea market

closeout

noun
  • A sale in which all merchandise is sold, at whatever reduced price is necessary 

  • A wave which breaks all at once, as opposed to breaking progressively along its length. 

flea market

noun
  • An outdoor temporary market selling inexpensive antiques, curios etc. 

  • A permanent indoor market of stalls in a warehouse selling inexpensive antiques, outdated goods, curios, etc. 

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