crayfish vs octopus

crayfish

verb
  • to catch crayfish 

noun
  • Any of numerous freshwater decapod crustaceans in superfamily Astacoidea or Parastacoidea, resembling the related lobster but usually much smaller. 

  • A rock lobster (family Palinuridae). 

  • The species Thenus orientalis of the slipper lobster family (Scyllaridae). 

  • A freshwater crustacean (family Cambaridae), sometimes used as an inexpensive seafood or as fish bait. 

  • A freshwater crayfish (family Parastacidae), such as the gilgie, marron, or yabby. 

octopus

verb
  • To hunt and catch octopuses. 

  • To behave like an octopus. 

  • To put (or attempt to put) one's fingers, hands or arms in many things or places at roughly the same time. 

  • To grow in use vastly beyond what was originally intended. 

  • To spread out in long arms or legs in many directions. 

  • To plug a large number of devices into a single electric outlet. 

noun
  • An organization that has many powerful branches controlled from the centre. 

  • Any of several marine molluscs of the family Octopodidae, having no internal or external protective shell or bone (unlike the nautilus, squid and cuttlefish) and eight arms each covered with suckers. 

  • The flesh of these marine molluscs eaten as food. 

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