noun a member of the fraternity of freemasons. ·see freemason.
2. mason ·noun one whose occupation is to build with stone or brick; also, one who prepares stone for building purposes.
3. 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.