The word "loiter" is correct and usable in written English.
You can use it to describe someone or something that is lingering somewhere for an extended period of time without any particular purpose. For example: "The teenagers were told to stop loitering around the neighborhood park."
The ruthlessness of the campaign, plus the killing of Osama bin Laden, blunted Republican charges that he is soft on national security.Because drones can loiter over potential targets for hours before firing their missiles, they are more discriminating than either fast jets or helicopter-borne special forces.
The latest innovation is unmanned, miniature aircraft (adapted from army models) that can loiter over trouble spots, feeding images to police on the ground.Vast computerised collections of information have become popular too.
The American Global Hawk, for instance, can loiter over a battlefield for a day at a height of more than 60,000 feet.
Many, known as stick men, loiter on the streets carrying bamboo poles used for lugging loads up the hilly streets (so steep that pedal-driven vehicles are hardly to be seen).
The Predator, however, may be supplanted in any Gulf war by the Global Hawk, which can loiter for more than 24 hours at high altitude over a battlefield.
America now had a platform that could loiter over a target area for days, provide infra-red and optical surveillance in all weathers and, with the addition of Hellfire anti-tank missiles in 2001, launch a devastating attack without warning.Today the Department of Defence has over 6,000 UAVs, including hundreds based on the Predator.
Each day they loiter, playing Chinese chess, hoping to be offered work.
They have been used for many years for surveillance, since they can loiter over dangerous areas without putting pilots at risk or costing too much (around $3m apiece) to replace if they are destroyed.
A single operator could control several aircraft at once, and operators working in shifts would enable UCAVs to loiter in a combat area for hours far beyond the operating endurance of individual human pilots—as they wait to strike.
Shipments commonly head for the Iberian Peninsula, either hidden in legitimate container vessels or on board creaking old "motherships", which loiter out at sea while nimbler craft bring the packages onshore.
In Britain, on the orders of a home secretary who vowed to "eradicate" it, undercover police were sent out to loiter in bars, entrap gay men and put them in jail.
