decline vs mushroom

decline

noun
  • A weakening. 

  • Downward movement, fall. 

  • A reduction or diminution of activity. 

  • The act of declining or refusing something. 

  • A sloping downward, e.g. of a hill or road. 

verb
  • To choose not to do something; refuse, forbear, refrain. 

  • To run through from first to last; to recite in order as though declining a noun. 

  • To cause to decrease or diminish. 

  • To bend downward; to bring down; to depress; to cause to bend, or fall. 

  • To turn or bend aside; to deviate; to stray; to withdraw. 

  • To move downwards, to fall, to drop. 

  • To inflect for case, number, gender, and the like. 

  • To reject a penalty against the opposing team, usually because the result of accepting it would benefit the non-penalized team less than the preceding play. 

  • To become weaker or worse. 

  • To recite all the different declined forms of (a word). 

mushroom

adj
  • Having characteristics like those of a mushroom, for example in shape or appearance, speed of growth, or texture. 

verb
  • To form the shape of a mushroom when striking a soft target. 

  • To form the shape of a mushroom. 

  • To grow quickly to a large size. 

  • To gather mushrooms. 

noun
  • A fungus producing such fruiting bodies. 

  • A concrete column with a thickened portion at the top, used to support a slab. 

  • Any of the fleshy fruiting bodies of fungi typically produced above ground on soil or on their food sources (such as decaying wood). 

  • Something that grows very quickly or seems to appear suddenly. 

  • Champignon or Agaricus bisporus, the mushroom species most commonly used in cooking. 

  • Any of the mushroom-shaped pegs in bar billiards. 

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