greenhouse vs nursery

greenhouse

noun
  • A building used to grow plants, particularly one with large glass windows or plastic sheeting to trap heat from sunlight even in intemperate seasons or climates. 

  • A hot state in global climate. 

  • A structure that shields the operating table to protect against bacteria. 

verb
  • To place (plants) in a greenhouse. 

  • To nurture in order to promote growth. 

nursery

noun
  • A place where anything is fostered and growth promoted. 

  • A place where the pre-school children of working parents are supervised during the day; a crèche, a daycare centre. 

  • A nursery school (“a school where pre-school children learn and play at the same time”). 

  • A club or team for developing the skills of young players. 

  • The first year of pre-school. 

  • A place where animals breed, or where young animals are naturally or artificially reared (for example, on a farm). 

  • Something which educates and nurtures. 

  • Especially in European countries: a room or area in a household set apart for the care of children. 

  • A place where young shrubs, trees, vines, etc., are cultivated for transplanting, or (more generally) made available for public sale, a garden centre; also (obsolete) a plantation of young trees. 

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