Noun
working part (plural working parts)
(rope) The section of rope between the working end and a knot being made.
For those that are working part time, in small businesses, or who are unemployed and do not currently have health insurance, we want to make sure that you are covered. Valerie Jarrett
As spread thighs are to the libertine, flights of migratory birds to the ornithologist, the working part of his tool bit to the production machinist, so was the letter V to young Stencil. Thomas Pynchon
When I was a student at Princeton University, I was working part time in a grocery store. I saw an ad for teachers of a prep course. I don't remember what it paid, but it was easily double or triple the minimum wage. John Katzman