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Comprehensive
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grouchy tending to be irritable and complaining; bad-tempered.
ground1 the earth's solid surface; land. [13 definitions]
ground2 past tense and past participle of grind. [3 definitions]
ground ball in baseball, a batted ball that quickly strikes the ground and bounces or rolls; grounder. (Cf. fly ball.)
ground bass a repeated bass passage that provides a background for changing music in the upper registers.
ground beef beef that has been put through a grinder for use in such things as hamburgers, meatloaf, and meat sauces.
ground beetle any of numerous, usu. dark beetles that are often found under rocks, fallen logs, or debris and that feed on other insects.
groundbreaking a ceremonial commencement of a building or construction project, when the first ground is broken with a shovel. [2 definitions]
ground control the system, or its technology or operators, that guides the flights of aircraft or spacecraft from stations on the ground.
ground cover any of numerous low-growing plants that grow thickly and cover the ground, and often prevent soil erosion where there is little grass. [2 definitions]
ground crew the persons that maintain and service aircraft on the ground.
grounder see ground ball.
ground floor the floor of a building closest to ground level; first floor. [2 definitions]
ground glass glass that diffuses light because its surface has been ground or etched. [2 definitions]
groundhog see woodchuck.
Groundhog Day February 2, on which tradition asserts that a certain groundhog comes out of its hole, and that if it sees its shadow, six more weeks of winter weather will follow.
groundless not having a logical foundation; unsubstantiated.
groundling an animal or plant that moves or lives close to the ground. [2 definitions]
ground loop a sharp, unexpected, and often uncontrolled turn of an aircraft moving on the ground, as during landing.
groundnut any of several plants having edible underground nuts or tubers, such as the peanut.
ground plan a floor plan of a building. [2 definitions]