■ adjective
1》 having paid employment.
↘engaged in manual labour.
↘(of an animal) used in farming, hunting, or for guard duties.
2》 functioning or able to function.
↘(of parts of a machine) moving and causing a machine to operate.
3》 good enough as the basis for work or argument and likely to be developed or improved later: a ~ title.
■ noun
1》 a mine or a part of a mine from which minerals are being extracted.
2》 ( ~s ) the way in which a machine, organization, or system operates.
↘the record of the successive calculations made in solving a mathematical problem.
3》 a scheduled duty or trip performed by a locomotive, bus, etc.