Shingle

1. n. A sign for an office or a shop; as, to hang out one’s shingle.
2. n. Round, water-worn, and loose gravel and pebbles, or a collection of roundish stones, such as are common on the seashore and elsewhere.
3. n. A piece of wood sawed or rived thin and small, with one end thinner than the other, — used in covering buildings, especially roofs, the thick ends of one row overlapping the thin ends of the row below.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.