present participle of work the refs

a hypothesis that is unverified yet tentatively chosen as a best guess to build upon or put effort into its verification

plural of working day

(metallurgy) The process of strengthening a metal through plastic deformation.

present participle of work blue

present participle of work the oracle

plural of working bee

plural of working stiff

(originally US, informal) An ordinary person who works in a non-management position, especially one who works for wages rather than a salary.

(New Zealand, Australia) A group of volunteers doing charitable work.