From The Collaborative International Dictionary of English v.0.48:
Caboose \Ca*boose"\ (k[.a]*b[=oo]s"), n. [Cf. D. kabuis,
kombuis, Dan. kabys, Sw. kabysa, G. kabuse a little room or
hut. The First part of the word seems to be allied to W. cab
cabin, booth. Cf. Cabin.] [Written also camboose.]
1. (Naut.) A house on deck, where the cooking is done; --
commonly called the galley.
[1913 Webster]
2. (Railroad) A car used on freight or construction trains as
travelling quarters for brakemen, workmen, etc.; a tool
car. It usually is the last car of the train. [U. S.]
[1913 Webster +PJC]
From The Collaborative International Dictionary of English v.0.48:
Camboose \Cam*boose"\, n. (Naut.)
See Caboose.
[1913 Webster]