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Great Depression the decade of the 1930s in the United States and other countries, characterized by extreme economic hardship; the Depression.
greater than in mathematics, being a quantity larger than the quantity that follows.
greater than or equal to in mathematics, being a quantity equal to or larger than the quantity that follows.
greater than or equal to sign in mathematics, a symbol (≥) indicting that the value before the sign is equal to or greater than the value after the sign.
greater than sign in mathematics, a symbol (>) indicting that the value before the sign is larger than the value after the sign.
great-grandchild a child of one's grandson or granddaughter.
great-grandfather the grandfather of a person's mother or father.
great-grandmother the grandmother of a person's mother or father.
great-grandparent a parent of one's grandmother or grandfather.
great gross a unit of quantity equal to twelve gross.
greathearted having a generous nature; magnanimous. [2 definitions]
great horned owl a large gray and brown North American owl that has two large earlike tufts of blackish feathers.
Great Lakes five large interconnected freshwater lakes on the border between the United States and Canada; Lakes Superior, Michigan, Huron, Erie, and Ontario.
great laurel a large wild rhododendron of the eastern United States that has thick glossy dark green leaves and bears clusters of white or pink flowers.
greatly very much. [2 definitions]
Great Mogul the title of the emperor of the former Mongol empire that was established in India in 1526. [2 definitions]
Great Nebula the brightest and closest of nebulae, located in the constellation of Orion.
great-nephew a son of one's nephew or niece; grandnephew.
great-niece a daughter of one's nephew or niece; grandniece.
Great Pacific Garbage Patch a vast accummulation of debris made up primarily of tiny plastic particles floating in the upper column of water in the north central region of the Pacific Ocean.
Great Pyramid of Giza a limestone and granite pyramid, which is the oldest and only remaining of the Seven Wonders of the Ancient World, built circa 2500 B.C.E. as a memorial and tomb for King Khufu, the second king of the fourth Egyptian dynasty.