Definition of blockhouse :
1. A house of squared logs.
2. An edifice or structure of heavy timbers or logs for military defense, having its sides loopholed for musketry, and often an upper story projecting over the lower, or so placed upon it as to have its sides make an angle wit the sides of the lower story, thus enabling the defenders to fire downward, and in all directions; -- formerly much used in America and Germany.
- The Germans had taken him into their blockhouse, and because of our gun- fire they could not get out of it, and kept him there. - "From Bapaume to Passchendaele, 1917", Philip Gibbs.
- The height gained, he was interested by the discovery of an unroofed blockhouse of rough stone that literally perched upon a precipitous granite hump. - "Lonesome Town", Ethel and James Dorrance.
- About a hundred yards to the east of the road, on a slight eminence in the center of cleared ground, stood the blockhouse. - "Peggy Owen and Liberty", Lucy Foster Madison.