Hebrews bedil (Numbers 31:22; Ezek. 22:18, 20), a metal well known in ancient times. It is the general opinion that the Phoenicians of Tyre and Sidon obtained their supplies of tin from the British Isles. In Ezek. 27:12 it is said to have been brought from Tarshish, which was probably a commercial emporium supplied with commodities from other places. In Isaiah 1:25 the word so rendered is generally understood of lead, the alloy with which the silver had become mixed (ver. 22). The fire of the Babylonish Captivity would be the means of purging out the idolatrous alloy that had corrupted the people.

Noah Webster's New International Dictionary of the English Language

1. (n.) An elementary substance found as an oxide in the mineral cassiterite, and reduced as a soft white crystalline metal, malleable at ordinary temperatures, but brittle when heated. It is not easily oxidized in the air, and is used chiefly to coat iron to protect it from rusting, in the form of tin foil with mercury to form the reflective surface of mirrors, and in solder, bronze, speculum metal, and other alloys. Its compounds are designated as stannous, or stannic. Symbol Sn (Stannum). Atomic weight 117.4.

2. (n.) Thin plates of iron covered with tin; tin plate.

3. (n.) Money.

4. (v. t.) To cover with tin or tinned iron, or to overlay with tin foil.