noun: (Canada, uncountable) electrical power supply; specifically, electrical power provided by a utility (as a publicly-owned one); payment or bills for this.
noun: (Britain, countable, dated) A spa.
noun: (countable, aviation, obsolete) Abbreviation of hydroaeroplane. [(aviation, obsolete) a floatplane, an airplane specialized for operating on water, having pontoon floats instead of skids or wheels]