| ground | (noun) the first or preliminary coat of paint or size applied to a surface | Synonyms: flat coat, primer, primer coat, priming, priming coat, undercoat |
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| (noun) (art) the surface (as a wall or canvas) prepared to take the paint for a painting | - |
| (noun) a connection between an electrical device and a large conducting body, such as the earth (which is taken to be at zero voltage) | Synonyms: earth |
| (noun) the part of a scene (or picture) that lies behind objects in the foreground | Synonyms: background |
| (noun) a relatively homogeneous percept extending back of the figure on which attention is focused | - |
| (noun) a position to be won or defended in battle (or as if in battle) | - |
| (noun) a rational motive for a belief or action | Synonyms: occasion, reason |
| (noun) the solid part of the earth's surface | Synonyms: dry land, earth, land, solid ground, terra firma |
| (noun) material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use) | Synonyms: land, soil |
| (noun) a relation that provides the foundation for something | Synonyms: basis, footing |
| (noun) the loose soft material that makes up a large part of the land surface | Synonyms: earth |
| groundball | (noun) (baseball) a hit that travels along the ground | Synonyms: ground ball, grounder, hopper |
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| groundberry | (noun) creeping shrub of eastern North America having white bell-shaped flowers followed by spicy red berrylike fruit and shiny aromatic leaves that yield wintergreen oil | Synonyms: checkerberry, creeping wintergreen, Gaultheria procumbens, ground-berry, mountain tea, teaberry, wintergreen |
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| (noun) small prostrate or ascending shrub having scarlet flowers and succulent fruit resembling cranberries; sometimes placed in genus Styphelia | Synonyms: Astroloma humifusum, cranberry heath, ground-berry, native cranberry, Styphelia humifusum |
| groundbreaker | (noun) someone who helps to open up a new line of research or technology or art | Synonyms: innovator, pioneer, trailblazer |
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| groundbreaking | (noun) the ceremonial breaking of the ground to formally begin a construction project | Synonyms: groundbreaking ceremony |
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| groundcover | (noun) small plants other than saplings growing on a forest floor | Synonyms: ground cover |
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| (noun) low-growing plants planted in deep shade or on a steep slope where turf is difficult to grow | Synonyms: ground cover |
| grounder | (noun) (baseball) a hit that travels along the ground | Synonyms: ground ball, groundball, hopper |
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| groundfish | (noun) fish that live on the sea bottom (particularly the commercially important gadoid fish like cod and haddock, or flatfish like flounder) | Synonyms: bottom fish |
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| groundhog | (noun) reddish brown North American marmot | Synonyms: Marmota monax, woodchuck |
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| grounding | (noun) fastening electrical equipment to earth | Synonyms: earthing |
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| (noun) education or instruction in the fundamentals of a field of knowledge | Synonyms: foundation |
| groundkeeper | (noun) someone who maintains the grounds (of an estate or park or athletic field) | Synonyms: groundskeeper, groundsman |
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| groundlessness | (noun) the quality of lacking substance or value | Synonyms: idleness |
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| groundling | (noun) in Elizabethan theater: a playgoer in the cheap standing section | - |
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| groundmass | (noun) (geology) the matrix of fine-grained crystalline material in which larger crystals are embedded | - |
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| groundnut | (noun) nutlike tuber; important food of Native Americans | Synonyms: potato bean, wild bean |
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| (noun) pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms | Synonyms: earthnut, goober, goober pea, monkey nut, peanut |
| (noun) a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans | Synonyms: Apios americana, Apios tuberosa, groundnut vine, Indian potato, potato bean, wild bean |
| grounds | (noun) the enclosed land around a house or other building | Synonyms: curtilage, yard |
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| (noun) your basis for belief or disbelief; knowledge on which to base belief | Synonyms: evidence |
| (noun) a justification for something existing or happening | Synonyms: cause, reason |
| (noun) a tract of land cleared for some special purposes (recreation or burial etc.) | - |
| (noun) dregs consisting of solid particles (especially of coffee) that form a residue | - |
| groundsel | (noun) Eurasian weed with heads of small yellow flowers | Synonyms: Senecio vulgaris |
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| groundsheet | (noun) a waterproofed piece of cloth spread on the ground (as under a tent) to protect from moisture | Synonyms: ground cloth |
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| groundskeeper | (noun) someone who maintains the grounds (of an estate or park or athletic field) | Synonyms: groundkeeper, groundsman |
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| groundsman | (noun) someone who maintains the grounds (of an estate or park or athletic field) | Synonyms: groundkeeper, groundskeeper |
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| groundspeed | (noun) the speed of an aircraft relative to the ground | - |
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| groundwork | (noun) preliminary preparation as a basis or foundation | - |
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| (noun) lowest support of a structure | Synonyms: base, foot, foundation, fundament, substructure, understructure |
| (noun) the fundamental assumptions from which something is begun or developed or calculated or explained | Synonyms: base, basis, cornerstone, foundation, fundament |
| group | (noun) any number of entities (members) considered as a unit | Synonyms: grouping |
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| (noun) a set that is closed, associative, has an identity element and every element has an inverse | Synonyms: mathematical group |
| (noun) (chemistry) two or more atoms bound together as a single unit and forming part of a molecule | Synonyms: chemical group, radical |
| grouper | (noun) usually solitary bottom sea basses of warm seas | - |
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| (noun) flesh of a saltwater fish similar to sea bass | - |
| groupie | (noun) an enthusiastic young fan (especially a young woman who follows rock groups around) | - |
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| grouping | (noun) any number of entities (members) considered as a unit | Synonyms: group |
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| (noun) the activity of putting things together in groups | - |
| (noun) a system for classifying things into groups | Synonyms: pigeonholing |
| groupthink | (noun) decision making by a group (especially in a manner that discourages creativity or individual responsibility) | - |
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| groupware | (noun) software that can be used by a group of people who are working on the same information but may be distributed in space | - |
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| grouse | (noun) popular game bird having a plump body and feathered legs and feet | - |
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| (noun) flesh of any of various grouse of the family Tetraonidae; usually roasted; flesh too dry to broil | - |
| grouseberry | (noun) shrub of northwestern North America bearing red berries | Synonyms: grouse-berry, grouse whortleberry, Vaccinium scoparium |
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| grout | (noun) a thin mortar that can be poured and used to fill cracks in masonry or brickwork | - |
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| grove | (noun) garden consisting of a small cultivated wood without undergrowth | Synonyms: orchard, plantation, woodlet |
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| (noun) a small growth of trees without underbrush | - |
| groveler | (noun) someone who humbles himself as a sign of respect; who behaves as if he had no self-respect | Synonyms: apple polisher, bootlicker, fawner, groveller, truckler |
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| groveller | (noun) someone who humbles himself as a sign of respect; who behaves as if he had no self-respect | Synonyms: apple polisher, bootlicker, fawner, groveler, truckler |
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| grower | (noun) someone concerned with the science or art or business of cultivating the soil | Synonyms: agriculturalist, agriculturist, cultivator, raiser |
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| growing | (noun) (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level | Synonyms: development, growth, maturation, ontogenesis, ontogeny |
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| (noun) (electronics) the production of (semiconductor) crystals by slow crystallization from the molten state | - |
| growl | (noun) the sound of growling (as made by animals) | Synonyms: growling |
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| growler | (noun) a small iceberg or ice floe just large enough to be hazardous for shipping | - |
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| (noun) a speaker whose voice sounds like a growl | - |
| growling | (noun) a gruff or angry utterance (suggestive of the growling of an animal) | - |
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| (noun) the sound of growling (as made by animals) | Synonyms: growl |
| grownup | (noun) a fully developed person from maturity onward | Synonyms: adult |
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| growth | (noun) the gradual beginning or coming forth | Synonyms: emergence, outgrowth |
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| (noun) vegetation that has grown | - |
| (noun) something grown or growing | - |
| (noun) (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level | Synonyms: development, growing, maturation, ontogenesis, ontogeny |
| (noun) a progression from simpler to more complex forms | - |
| (noun) a process of becoming larger or longer or more numerous or more important | Synonyms: increase, increment |
| (noun) (pathology) an abnormal proliferation of tissue (as in a tumor) | - |
| groyne | (noun) a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away | Synonyms: breakwater, bulwark, groin, jetty, mole, seawall |
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| grub | (noun) a soft thick wormlike larva of certain beetles and other insects | - |
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| (noun) informal terms for a meal | Synonyms: chow, chuck, eats |
| grubbiness | (noun) the state of being grimy | Synonyms: griminess |
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| grubby | (noun) small sculpin of the coast of New England | Synonyms: Myxocephalus aenaeus |
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| grubstake | (noun) funds advanced to a prospector or to someone starting a business in return for a share of the profits | - |
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| grudge | (noun) a resentment strong enough to justify retaliation | Synonyms: grievance, score |
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| gruel | (noun) a thin porridge (usually oatmeal or cornmeal) | - |
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| gruesomeness | (noun) the quality of being ghastly | Synonyms: ghastliness, grimness, luridness |
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| gruffness | (noun) a throaty harshness | Synonyms: hoarseness, huskiness |
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| (noun) an abrupt discourteous manner | Synonyms: abruptness, brusqueness, curtness, shortness |
| grugru | (noun) tropical American feather palm having a swollen spiny trunk and edible nuts | Synonyms: Acrocomia aculeata, gri-gri, grugru palm, macamba |
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| grumble | (noun) a complaint uttered in a low and indistinct tone | Synonyms: grumbling, murmur, murmuring, mutter, muttering |
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| (noun) a loud low dull continuous noise | Synonyms: grumbling, rumble, rumbling |
| grumbler | (noun) a person given to excessive complaints and crying and whining | Synonyms: bellyacher, complainer, crybaby, moaner, sniveller, squawker, whiner |
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| grumbling | (noun) a complaint uttered in a low and indistinct tone | Synonyms: grumble, murmur, murmuring, mutter, muttering |
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| (noun) a loud low dull continuous noise | Synonyms: grumble, rumble, rumbling |
| grume | (noun) a semisolid mass of coagulated red and white blood cells | Synonyms: blood clot |
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| (noun) a thick viscous liquid | - |
| grummet | (noun) fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines | Synonyms: cringle, eyelet, grommet, loop |
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| grump | (noun) a bad-tempered person | Synonyms: churl, crank, crosspatch, grouch |
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| grumpiness | (noun) a fussy and eccentric disposition | Synonyms: contrariness, crankiness, crotchetiness |
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| grunge | (noun) anything regarded as making something unclean | Synonyms: dirt, filth, grease, grime, soil, stain |
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| grunt | (noun) medium-sized tropical marine food fishes that utter grunting sounds when caught | - |
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| (noun) the short low gruff noise of the kind made by hogs | Synonyms: oink |
| (noun) an unskilled or low-ranking soldier or other worker | - |
| grunter | (noun) domestic swine | Synonyms: hog, pig, squealer, Sus scrofa |
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| (noun) a person who grunts | - |
| gryphon | (noun) winged monster with the head of an eagle and the body of a lion | Synonyms: griffin, griffon |
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