singling

verb

1. (form-of, gerund, participle, present)present participle and gerund of single

noun

1. Liquid collected from the wash, or fermented wort; low wine.
2. The reduction of a railway line from double-track to single-track.

   “[…] associated with this project would be the singling of the line from Selby to Shipton Lane, 2½ miles from Market Weighton, and the working of this section on the one-engine-in-steam principle, […]”