8-letter words containing d, i, o
- gridwork — Work in the form of a grid.
- grind on — If you say that something grinds on, you disapprove of the fact that it continues to happen in the same way for a long time.
- griswold — Erwin Nathaniel, 1904–1994, U.S. lawyer and educator: dean of Harvard University Law School 1950–67.
- groupoid — an algebraic system closed under a binary operation. Also called monoid. Compare group (def 9), semigroup.
- gueridon — a small table or stand, as for holding a candelabrum.
- guilford — a town in S Connecticut, on Long Island Sound.
- gynecoid — of or like a woman.
- gyroidal — having a spiral arrangement.
- hadronic — (physics) of, related to, or composed of hadrons.
- hailwood — Mike, full name Stanley Michael Bailey Hailwood. 1940–81, English racing motorcyclist: world champion (250 cc.) 1961 and 1966–67; (350 cc.) 1966–67; and (500 cc.) 1962–65
- halidome — a holy place, as a church or sanctuary.
- handiron — andiron.
- haploidy — (genetics) The state of being haploid.
- hardboil — Alternative form of hard-boil.
- harold i — ("Harefoot") died 1040, king of England 1035–40 (son of Canute).
- hedonics — the branch of psychology that deals with pleasurable and unpleasurable states of consciousness.
- hedonism — the doctrine that pleasure or happiness is the highest good.
- hedonist — a person whose life is devoted to the pursuit of pleasure and self-gratification.
- helicoid — coiled or curving like a spiral.
- heliodor — a clear yellow variety of beryl used as a gemstone.
- hematoid — hemoid.
- hemipode — button quail.
- herodian — of or relating to Herod the Great, his family, or its partisans.
- herodias — the second wife of Herod Antipas and the mother of Salome: she told Salome to ask Herod for the head of John the Baptist.
- hidalgos — Plural form of hidalgo.
- hide out — British. a place of concealment for hunting or observing wildlife; hunting blind.
- hide-out — a hiding place, as for gangsters
- hideouts — Plural form of hideout.
- hidrosis — the excessive production of sweat.
- hidrotic — Relating to hidrosis.
- highroad — Chiefly British. a main road; highway.
- hindfoot — A rear foot.
- hindmost — furtherest behind or nearest the rear; last.
- histioid — histoid.
- hoarding — a supply or accumulation that is hidden or carefully guarded for preservation, future use, etc.: a vast hoard of silver.
- hocktide — a former festival celebrated on the second Monday and Tuesday after Easter
- hog wild — highly excited; without moderation or restraint
- hog-wild — wildly or intemperately enthusiastic or excited.
- hokkaido — a large island in N Japan. 30,303 sq. mi. (78,485 sq. km).
- holdings — An area of land held by lease.
- holidays — Plural form of holiday.
- holliday — Judith Tuvim ("Judy") 1921–65, U.S. comic actress.
- holytide — a time of religious observances.
- homaloid — a geometrical plane, a flat surface or space
- homebird — a person who is reluctant to leave their hometown or their childhood home, or who returns after a period of living away
- homicide — the killing of one human being by another.
- hominids — any member of the group consisting of all modern and extinct humans and great apes (including gorillas, chimpanzees, and orangutans) and all their immediate ancestors.
- hominoid — Anthropology. a member of the biological superfamily Hominoidea, including all modern great apes and humans and a number of their extinct ancestors and relatives.
- hoodlike — Resembling a hood.
- hoodwink — to deceive or trick.