duck vs retreat

duck

verb
  • To evade doing something. 

  • To lower (something) into water; to thrust or plunge under liquid and suddenly withdraw. 

  • To lower the volume of (a sound) so that other sounds in the mix can be heard more clearly. 

  • To quickly lower (the head or body), often in order to prevent it from being struck by something. 

  • To enter a place for a short moment. 

  • To go under the surface of water and immediately reappear; to plunge one's head into water or other liquid. 

  • To quickly lower the head or body, often in order to prevent it from being struck by something. 

  • To bow. 

noun
  • A long-necked medical urinal for men. 

  • A building intentionally constructed in the shape of an everyday object to which it is related. 

  • One of the weights used to hold a spline in place for the purpose of drawing a curve. 

  • Trousers made of such material. 

  • A tightly-woven cotton fabric used as sailcloth. 

  • A marble to be shot at with another marble (the shooter) in children's games. 

  • The flesh of a duck used as food. 

  • An aquatic bird of the family Anatidae, having a flat bill and webbed feet. 

  • A term of endearment; pet; darling. 

  • A cave passage containing water with low, or no, airspace. 

  • A batsman's score of zero after getting out. (short for duck's egg, since the digit "0" is round like an egg.) 

  • Specifically, an adult female duck; contrasted with drake and with duckling. 

  • A cairn used to mark a trail. 

  • A playing card with the rank of two. 

  • Dear, mate (informal way of addressing a friend or stranger). 

retreat

verb
  • To withdraw from a position, go back. 

  • To slope back. 

  • To withdraw military forces 

  • To shrink back due to generally warmer temperatures. 

  • a retreating forehead 

noun
  • A peaceful, quiet place affording privacy or security. 

  • The act of reversing direction and receding from a forward position. 

  • A bugle call or drumbeat signaling the lowering of the flag at sunset, as on a military base. 

  • A military ceremony to lower the flag. 

  • The move of a piece from a threatened position. 

  • A period of retirement, seclusion, or solitude. 

  • A period of meditation, prayer or study. 

  • The act of pulling back or withdrawing, as from something dangerous, or unpleasant. 

  • A signal for a military withdrawal. 

  • Withdrawal by military force from a dangerous position or from enemy attack. 

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