flutterboard vs raft

flutterboard

noun
  • A buoyancy board made of foam, used to support the body when in water. 

raft

noun
  • A flat-bottomed craft able to float and drift on water, used for transport or as a waterborne platform. 

  • A mass of congealed solids that forms on a consommé because of the protein in the egg white. 

  • A thick crowd of seabirds or sea mammals, particularly a group of penguins when in the water. 

  • Any flattish thing, usually wooden, used in a similar fashion. 

  • A collection of logs, fallen trees, etc. which obstructs navigation in a river. 

  • A slice of toast. 

  • A square array of sensors forming part of a large telescope. 

  • A large (but unspecified) number, a lot. 

verb
  • To convey on a raft. 

  • To make into a raft. 

  • To travel by raft. 

  • To dock (toolbars, etc.) so that they share horizontal or vertical space. 

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