(distilling) Liquid collected from the wash, or fermented wort; low wine. / (rail transport) The reduction of a railway line from double to single track.

plural of singleness

(archaic or nonstandard) singly, individually

plural of singling

(chemistry) A covalent bond in which one electron pair is shared between two atoms.

(mathematics) Of a function, associating a unique value of its range with each value of its domain.

(medicine) Pneumonia affecting one lung.

The unified currency proposed for all EU states; it became the Euro.

A line or queue one person wide.

(of a line or queue) One person wide.