13-letter words containing o, u, b, a
- double magnum — Jeroboam (def 2).
- double paddle — a paddle with a blade at each end, as that of the kayak.
- double spread — any pair of facing pages in a completed book, magazine, etc.
- double tackle — a pulley system using blocks having two grooved wheels.
- double whammy — twofold misfortune
- double-acting — (of a reciprocating engine, pump, etc.) having pistons accomplishing work in both directions, fluid being admitted alternately to opposite ends of the cylinders. Compare single-acting.
- double-action — (of a firearm) requiring only one pull of the trigger to cock and fire it.
- double-glazed — of, having, or provided with double glazing: double-glazed windows and doors.
- double-header — Sports. two games, as of baseball, between the same teams on the same day in immediate succession. two games, as of basketball, between two different pairs of teams on the same day in immediate succession.
- double-tailed — (of a lion) represented with two tails joined together next to the body.
- doublespeaker — a person who uses doublespeak
- draughtboards — Plural form of draughtboard.
- draughtsboard — The board on which draughts is played, resembling a chessboard but (depending on the game variation) often having a side length of ten squares rather than eight.
- durable goods — Durable goods or durables are goods such as televisions or cars which are expected to last a long time, and are bought infrequently.
- durban poison — a particularly potent variety of cannabis grown in Natal
- east by south — a point on the compass 11°15prime; south of east. Abbreviation: EbS.
- ebola (virus) — an RNA virus (family Filoviridae) that causes fever, internal bleeding, and, often, death
- encourageable — Able to be encouraged; suggestible.
- equilibration — The formation, or maintenance, of an equilibrium.
- equilibratory — Relating to the physical sense of balance, or equilibrium.
- faculty board — the governing body of a faculty
- fantabulously — In a fantabulous manner; fantastically, wonderfully.
- farm labourer — a person engaged in physical work on a farm
- fibromuscular — (anatomy) Of or pertaining to both fibrous and muscular tissue.
- fibrovascular — composed of fibrous and conductive tissue, as in the vascular systems of higher plants: a fibrovascular bundle.
- fluorocarbons — Plural form of fluorocarbon.
- flutterboards — Plural form of flutterboard.
- fontainebleau — a town in N France, SE of Paris: famous palace, long a favorite residence of French kings; extensive forest.
- fooling about — the act of speaking or acting in a playful, teasing, or jesting manner
- forced labour — labour done because of force; compulsory labour
- fuel air bomb — a type of bomb that spreads a cloud of gas, which is then detonated, over the target area, causing extensive destruction
- full of beans — the edible nutritious seed of various plants of the legume family, especially of the genus Phaseolus.
- fume cupboard — vent used in a laboratory
- funambulation — the act of walking on a tightrope; funambulism
- funambulatory — relating to tightrope-walking
- gobar numeral — any of a set of ancient numerals derived from Hindu numerals
- groundbreaker — a person who is an originator, innovator, or pioneer in a particular activity.
- gubernatorial — of or relating to a state governor or the office of state governor.
- gulf of gabès — an inlet of the Mediterranean on the E coast of Tunisia
- guzman blanco — Antonio [ahn-taw-nyaw] /ɑnˈtɔ nyɔ/ (Show IPA), 1829–99, Venezuelan political leader: president 1870–88.
- habeas corpus — a writ requiring a person to be brought before a judge or court, especially for investigation of a restraint of the person's liberty, used as a protection against illegal imprisonment.
- hail columbia — hell (used as a euphemism): He caught Hail Columbia for coming home late.
- halobacterium — Any of various extremophiles, of genus Halobacterium, found in water saturated or nearly saturated with salt.
- harbourmaster — (British, Canada, nautical) An official responsible for the enforcement of regulations in a port.
- harold burton — Harold Hitz [hits] /hɪts/ (Show IPA), 1888–1964, associate justice of the U.S. Supreme Court 1945–58.
- have a bun on — have a bun on, Slang. to be intoxicated: Everyone at the party seemed to have a bun on.
- heart trouble — cardiac condition
- honey buzzard — a long-tailed Old World hawk, Pernis apivorus, that feeds on the larvae of bees as well as on small rodents, reptiles, and insects.
- honourability — A state or condition or being honourable.
- hothouse lamb — a lamb born in the fall or early winter, usually reared indoors, specially fed, and marketed when from 9 to 16 weeks of age.