detergent vs dry cleaner

detergent

noun
  • Any non-soap cleaning agent, especially a synthetic surfactant. 

adj
  • Synonym of cleansing. 

dry cleaner

noun
  • A person whose business is the dry cleaning of clothes and other fabrics. 

  • A business establishment that engages in the dry cleaning of clothes and other fabrics. 

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