builder's jack


: a bracket that rests on a windowsill and projects outside for a worker to stand or sit upon in repairing a window
: a bracket fastened to a wall to support a scaffold
: a jack (as a jackscrew) used by builders

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Dictionary Entries Near builder's jack

Cite this Entry

“Builder's jack.” Dictionary, Merriam-Webster, Accessed 23 May. 2024.

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