pinnacle vs trough

pinnacle

noun
  • Coordinate term: sea stack 

  • An upright member, generally ending in a small spire, used to finish a buttress, to constitute a part in a proportion, as where pinnacles flank a gable or spire. 

  • The highest point. 

  • A tall, sharp and craggy rock or mountain. 

  • An all-time high; a point of greatest achievement or success. 

verb
  • To place on a pinnacle. 

  • To build or furnish with a pinnacle or pinnacles. 

trough

noun
  • Any similarly shaped container. 

  • A gutter under the eaves of a building; an eaves trough. 

  • A linear atmospheric depression associated with a weather front. 

  • A long, narrow container, open on top, for feeding or watering animals. 

  • A rectangular container used for washing or rinsing clothes. 

  • A long, narrow depression between waves or ridges; the low portion of a wave cycle. 

  • A channel for conveying water or other farm liquids (such as milk) from place to place by gravity; any ‘U’ or ‘V’ cross-sectioned irrigation channel. 

  • A short, narrow canal designed to hold water until it drains or evaporates. 

  • low turning point or a local minimum of a business cycle 

verb
  • To eat in a vulgar style, as if from a trough. 

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