| 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. |
| grounded |
aware of; concerned with, or experiencing the ordinary problems of real life that most people experience. [2 definitions] |
| 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] |
| ground rule |
(usu. pl.) basic rules governing the behavior in a given situation, esp. as concerns the playing of a game on a particular field, course, or court. |
| grounds |
tiny pieces of solid matter, such as coffee, that settle at the bottom of a liquid. [2 definitions] |
| groundsel |
any of various weeds that bear small yellow flowers. |
| groundsill |
the lowest horizontal timber in the framework of a building. |
| groundskeeper |
a person responsible for the maintenance of the grounds of an estate, park, sports field, or the like. |
| ground squirrel |
any of various burrowing rodents, such as chipmunks, that differ from true squirrels in having cheek pouches and shorter fur. |