forest vs seedling

forest

noun
  • A dense uncultivated tract of trees and undergrowth, larger than woods. 

  • A defined area of land set aside in England as royal hunting ground or for other privileged use; all such areas. 

  • Any dense collection or amount. 

  • A group of domains that are managed as a unit. 

  • The colour forest green. 

  • A graph with no cycles; i.e., a graph made up of trees. 

verb
  • To cover an area with trees. 

seedling

noun
  • a tree smaller than a sapling. 

  • one grown in a nursery for transplanting. 

  • A young plant grown from seed. 

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