working >> ˈwəːkɪŋ
Definition: [adjective] having paid employment.
Example: the size of the working population
Definition: [adjective] functioning or able to function.
Example: the mill still has a working waterwheel
Definition: [adjective] (of a theory, definition, or title) used as the basis for work or argument and likely to be developed or improved later.
Example: his working title for the book was Why People Are Poor
Definition: [noun] the action of doing work.
Example: working with animals teaches patience
Definition: [noun] the way in which a machine, organization, or system operates.
Definition: [noun] a mine or a part of a mine from which minerals are being extracted.
Example: a modern mine on the site of old workings