hoard vs slough

hoard

noun
  • A cache of valuable objects or artefacts; a trove. 

  • A hoarding (temporary structure used during construction). 

  • A hidden supply or fund. 

  • A hoarding (billboard). 

  • A projecting structure (especially of wood) in a fortification, somewhat similar to and later superseded by the brattice. 

verb
  • To amass, usually for one's own private collection. 

slough

noun
  • A small pond, often alkaline, many but not all formed by glacial potholes. 

  • Dead skin on a sore or ulcer. 

  • A muddy or marshy area. 

  • A type of swamp or shallow lake system, typically formed as or by the backwater of a larger waterway, similar to a bayou with trees. 

  • A state of depression. 

  • The skin shed by a snake or other reptile. 

  • A secondary channel of a river delta, usually flushed by the tide. 

verb
  • To shed (skin). 

  • To slide off (like a layer of skin). 

  • To discard. 

  • To commit truancy, be absent from school without permission. 

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