1. (n.) 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.

2. (n.) A house of squared logs.

acropolis bastion beachhead box bridgehead bungalow bunker cabin castle chalet citadel cot cote cottage donjon fasthold fastness fort fortress garrison garrison house hold keep lodge log cabin love nest martello martello tower mote motte peel peel tower pied-a-terre pillbox post rath safehold snuggery strong point stronghold tower tower of strength ward