A large wooden plate or platter, as for table use.

The table; hence, the pleasures of the table; food.

A thick slice of stale bread cut from a large oblong loaf was used as a simple plate in medieval times; it was called a trencher after the Old French trencher, to slice. The bread itself was often eaten at the end of the meal. Sometimes, the gravy-soaked trenchers from the master's table were distributed to feed the poor on the estate. In the fourteenth century, rectangular plates made of wood or pewter, also called trenchers, began to be used to support the bread. Eventually, the wooden trenchers supplanted the use of bread by the middle of the sixteenth century.

One who trenches; esp., one who cuts or digs ditches.

someone who digs trenches

a chain-saw like device that cuts a trench into the ground

Alternative name for a mortar-board. See morter-board.