·noun A member of the fraternity of Freemasons. ·see Freemason.
II. Mason ·noun One whose occupation is to build with stone or brick; also, one who prepares stone for building purposes.
III. Mason ·vt To build stonework or brickwork about, under, in, over, ·etc.; to construct by masons;
— with a prepositional suffix; as, to mason up a well or terrace; to mason in a kettle or boiler.