One of an ancient and secret association or fraternity, said to have been at first composed of masons or builders in stone, but now consisting of persons who are united for social enjoyment and mutual assistance.
A member of a widespread secret fraternal order pledged to mutual assistance and brotherly love; Also called: Mason.

ETYM French maçon, Late Lat. macio, machio, mattio, mactio, marcio, macerio; of uncertain origin.
A craftsman who works with stone or brick; SYN. stonecutter, stonemason.