Working definition
Working
adjective
1. functioning: capable of being used or operated. 2. worn at work: suitable for use while at work. 3. having paid job: engaged in doing paid work . 4. spent at work: taken up with work all his working life. 5. given over to work: spent doing work at a time when work is not normally done a working lunch. 6. adequate: good enough for a purpose, though not perfect or complete. A working knowledge of Italian. 7. providing basis: usable as a basis for further work. A working theory