Intensely focused and concentrated on purpose, thinking of only one goal, undistractable.

The property of being single-minded.

(of a jacket or coat) Closing with a single row of buttons that form a narrow overlap.

A charge added to a per-person occupancy rate that is based on an assumption of double occupancy, as on a cruise ship.

plural of single supplement

Alternative spelling of singleplayer

(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.