Definition of "ledge"

ledge¹

/lɛd͡ʒ/

noun
plural ledges
1. A shelf on which articles may be laid; also, that which resembles such a shelf in form or use, as a projecting ridge or part, or a molding or edge in joinery.
2. (geology) A shelf, ridge, or reef, of rocks.
3. A layer or stratum.
4. A lode; a limited mass of rock bearing valuable mineral.
5. (architecture) A (door or window) lintel.
6. (architecture) A cornice.
7. (shipbuilding) A piece of timber to support the deck, placed athwartship between beams.
verb
third-person singular simple present ledges, present participle ledging, simple past and past participle ledged
1. (uncommon) To cause to have, or to develop, a ledge (during mining, canal construction, building, etc).
  Quotations
  [...] preparation must not remove excess dentine from the canal, and care must be taken not to ledge the canal walls.
  1993, Proceedings, page 87
  Length Longer canals are more prone to ledging than shorter canals. Careful attention to maintaining patency is required to prevent ledging.Initial Size Smaller-diameter canals are more easily ledged than larger-diameter canals. In summary ...
  2009, Mahmoud Torabinejad, Richard E. Walton, Endodontics: Principles and Practice, Elsevier Health Sciences, page 330

ledge²

/lɛd͡ʒ/

noun
plural ledges
1. (slang) Alternative form of lege (“a legend; a person held in high regard”)

ledge³

/lɛd͡ʒ/

noun
plural ledges
1. (Canada, slang) A provincial or territorial legislature building.
  Quotations
  Known to Edmontonians as "the Ledge", the Alberta Legislature Building is a marvel of marble pillars, carved oak, beautiful Beaux-Arts architecture and stunning grounds.
  "Alberta Legislature," Explore Edmonton
2. (Canada, slang) A provincial or territorial legislative assembly.