| Word | Definition |
| Gainsay | to deny |
| Gait | manner of waling or running; speed |
| Galaxy | large, isolated system of stars, such as the Milky Way; a collection of brilliant personalities |
| Gale | windstorm; gust of wind; emotional outburst |
| Gall | bitterness; nerve |
| Gall | to annoy; chafe |
| Galleon | large sailing ship |
| Galvanize | to stimulate by shock; to stir up; revitalize |
| Gambit | an opening in which a player seeks to obtain some advantage by sacrificing a pawn or piece |
| Gambol | to romp; to skip about; to leap playfully |
| Gamely | in a spirited manner; with courage |
| Gamut | entire range |
| Gape | to open widely |
| Garbled | mixed up; jumbled; distorted |
| Gargantuan | huge; enormous |
| Gargoyle | a grotesquely carved figure of a human or animal |
| Garish | overbright in color; gaudy |
| Garner | to gather; to store up |
| Garnish | to decorate |
| Garrulous | loquacious; wordy; talkative |
| Gastronomy | science of preparing serving good food |
| Gauche | clumsy; coarse and uncouth |
| Gaudy | flashy; showy |
| Gaunt | lean and angular; barren |
| Gavel | hammerlike tool; mallet |
| Gawk | stare foolishly |
| Gazette | official periodical publication |
| Genealogy | record of descent; lineage |
| Generality | vague statement |
| Generate | to cause; to produce; to create |
| Generic | characteristic of an entire class or species |
| Genesis | beginning; origin |
| Geniality | cheerfulness; kindliness; sympathy |
| Genre | particular variety of art or literature |
| Genteel | well-bred; elegant |
| Gentility | those of gentle birth; refinement |
| Gentry | people of standing; class of people just below nobility |
| Genuflect | to bend the knee as a in worship |
| Germane | pertinent; bearing upon the case at hand |
| Germinal | pertaining to a germ; creative |
| Germinate | to cause to sprout; sprout |
| Gerontocracy | government ruled by old people |
| Gerrymander | to change voting district lines in order to favor a political party |
| Gestate | to evolve, as in prenatal growth |
| Gesticulation | motion; gesture |
| Ghastly | horrible |
| Gibberish | nonsense; babbling |
| Gibe | to mock |
| Giddy | light-hearted; dizzy |
| Gingerly | very carefully |
| Girth | distance around something; circumference |
| Gist | essence |
| Glacial | like a glacier; extremely cold |
| Glaring | highly conspicuous; harshly bright |
| Glaze | to cover with a thin and shiny surface |
| Glean | to gather leavings |
| Glib | fluent; facile; slick |
| Glimmer | to shine erratically; twinkle |
| Gloat | express evil satisfaction; view malevolently |
| Gloss over | to explain away |
| Glossary | brief explanation of words used in the text |
| Glossy | smooth and shining |
| Glower | to scowl |
| Glut | to overstock; to fill to excess |
| Glutinous | sticky; viscous |
| Glutton | someone who eats too much |
| Gnarled | twisted |
| Gnome | dwarf; underground spirit |
| Goad | to urge on |
| Gorge | narrow canyon; step, rocky cleft |
| Gorge | to stuff oneself |
| Gory | bloody |
| Gossamer | something extremely light, flimsy, or delicate; like cobwebs |
