grillA grating; a grid of wire or a sheet of material with a pattern of holes or slots, usually used to protect something while allowing the passage of air and liquids. Typical uses: to allow air through a fan while preventing fingers or objects from passing; to allow people to talk to somebody, while preventing attack.
grilladeA piece of slow-cooked meat (usually beef, veal, or pork) traditionally served with grits in New Orleans cuisine.
grillageA foundation of crisscrossing timber or steel beams, usually for spreading heavy loads over large areas.
grillbillySomeone whose grill is the nicest thing about their house.
grilleA rectangular stencil allowing words to be written, then read, through its apertures, with the text further disguised by filling the remaining space with irrelevant words.
grimdarkOf a film, television programme, video game, written work, etc.: having a gloomy, dystopian atmosphere.
grimderpOf a film, television program, video game, written work, etc., being grimdark to the point of being excessive, especially if perceived to be so by in-universe standards.
grimeDirt, grease, soot, etc. that is ingrained and difficult to remove.
GrimmianOf or relating to the Brothers Grimm (Jacob and Wilhelm Grimm), German academics, philologists, cultural researchers, lexicographers and authors who collected and published folklore during the 19th century.
GrimmyNickname of someone with the surname Grimshaw, Grimm, or similar
grimnessThe characteristic or quality of being grim.
GrimnirOdin; specifically, the name adopted by Odin in Grímnismál ("The Lay of Grimnir", also called "Grimnir's Sayings", in the Poetic Edda).
grimoireA book of instructions in the use of alchemy or magic, especially one containing spells for summoning demons.
GrimoldbyA village and civil parish (served by Grimoldby and Manby Parish Council) in East Lindsey district, Lincolnshire, England (OS grid ref TF3988).
GrindlefordA village and civil parish in Derbyshire Dales district, Derbyshire, England (OS grid ref SK2477).
GrindletonA village and civil parish in Ribble Valley district, Lancashire, England (OS grid ref SD7545).
GrindletonianA member of an antinomian religious group in seventeenth-century England, which believed in the primacy of God's spirit over the word of the Bible and questioned the authority of ordination.
GrindletonianismThe antinomian beliefs and practice of the Grindletonians, who flourished in England during the seventeenth century.