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HALF. One equal part of a thing divided into two parts, either in fact or in contemplation. A moiety. This word is used in composition; as, half cent, half dime, &c.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
53/53A - 15-minute service between Cramlington, Dudley, Killingworth, Benton and Shiremoor extending half-hourly to Whitley Bay or North Shields.
Service 168 between Sutton Coldfield and Minworth - peak hour journeys introduced and overall frequency increased to half-hourly.
If you cannot tell from your bills whether any particular meter is a half-hourly meter, your electricity supplier can confirm the position.
Congestion on the A470 between Merthyr and Cardiff at peak times demands that a half-hourly train service should have been introduced first.
The half-hourly link between Merthyr Tydfil and Cardiff will prove hugely popular, according to Professor Stuart Cole, of the Wales Transport Research Centre at the University of Glamorgan.
New services 1 and 2 will provide customers with a combined 15-minute frequency between Whitley Bay and Newcastle city centre, with service 1 running half-hourly to Gateshead and service 2 running half-hourly direct to the new Eldon Square Bus Station.
The half-hourly service will run through the night, seven days a week and will also serve Liver-pool John Lennon Airport.
7 is supposed to run half-hourly, but it is more like hourly, which is a damned disgrace asa lot of elderly people are left out in the cold.
The launch of a half-hourly semi-fast service between New Street and Coventry which would cut journey times for commuters in outlying communities such as Marston Green, Hampton-in-Arden and Berkswell.
The scheme, formerly known as the Carbon Reduction Commitment, requires all non-transport UK organisations - from half-hourly meter point users to firms using more than 6GW of half-hourly electricity a year - to register and comply.