Short "hint"

To defeat utterly and occupy the positions of; To rove over (a country, region, etc.); invade; ravage: To swarm over in great numbers, as animals; To spread or grow rapidly over, as plants, esp. vines, weeds,

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Used as a verb, listen here, it means: To defeat utterly and occupy the positions of; To rove over (a country, region, etc.); invade; ravage: To swarm over in great numbers, as animals; To spread or grow rapidly over, as plants, esp. vines, weeds, . Used as a noun, listen here, it means: An amount in excess; surplus; The exceeding of estimated costs in design, development, and production, esp. as estimated in a contract'; the printing of excess copies of material.