Definify.com
Webster 1913 Edition
Collier
1.
One engaged in the business of digging mineral coal or making charcoal, or in transporting or dealing in coal.
2.
A vessel employed in the coal trade.
Webster 1828 Edition
Collier
COLLIER
, n.1.
A digger of coal; one who works in a coal-mine.2.
A coal-merchant or dealer in coal.3.
A coasting vessel employed in the coal trade, or in transporting coal from the ports where it is received from the mines, to the ports where it is purchased for consumption.