Definition of master builder in US English:

master builder

noun

  • 1A person who is skilled in the art of building; an architect. Chiefly figurative (especially in rhetorical use).

  • 2Nautical. A senior officer of a shipyard, in charge of the major part of the workforce and responsible for all building and repairs; a master shipwright. Now historical.

Origin

Mid 16th century; earliest use found in Bible (Whittingham). From master + builder.