12-letter words containing a, i, r, b, o
- iambographer — a person who writes iambs
- ibota privet — a Japanese spreading shrub, Ligustrum obtusifolium, of the olive family, having hairy leaves and nodding white flower clusters.
- impardonable — (obsolete) unpardonable.
- imperforable — not able to be perforated
- imponderable — not ponderable; that cannot be precisely determined, measured, or evaluated.
- imprisonable — capable of being imprisoned or incarcerated
- incomparable — beyond comparison; matchless or unequaled: incomparable beauty.
- incomparably — beyond comparison; matchless or unequaled: incomparable beauty.
- incorporable — able to be incorporated.
- indian cobra — a highly venomous cobra, Naja naja, common in India, having markings resembling a pair of spectacles on the back of the hood.
- informidable — (obsolete) Not formidable; not to be feared or dreaded.
- infraorbital — (anatomy) Below the orbit (of the eye).
- inobservable — Unobservable.
- inobservance — lack of attention; inattention; heedlessness: drowsy inobservance.
- insalubrious — unfavorable to health; unwholesome.
- interlobular — (anatomy) Between lobules.
- interorbital — Between orbitals.
- interpolable — able to be interpolated, or suited to interpolation
- interrobangs — Plural form of interrobang.
- interrogable — capable of being interrogated
- irreformable — insusceptible to reforming influences; incorrigible.
- irreformably — in an irreformable manner
- irreprovable — Not reprovable; irreproachable.
- irreprovably — in an irreprovable manner
- irresolvable — not resolvable; incapable of being resolved, analyzable, or solvable.
- irresolvably — In an irresolvable manner.
- isobilateral — (esp of a leaf) capable of being divided into symmetrical halves along two different planes
- job creation — the process by which the number of jobs in an area, organization, etc is increased
- job rotation — the practice of transferring an employee from one work station or activity to another during the working day in order to add variety to a job: often used in assembly line work
- keyboardists — Plural form of keyboardist.
- kiteboarding — A sport in which participants ride a form of wakeboard or surfboard harnessed to a large kite which is controlled by the rider.
- labia majora — female genitals: outer folds of skin
- labia minora — female genitals: inner folds of skin
- labor-saving — A labor-saving device or idea makes it possible for you to do something with less effort than usual.
- laboratorial — a building, part of a building, or other place equipped to conduct scientific experiments, tests, investigations, etc., or to manufacture chemicals, medicines, or the like.
- laboratorian — a building, part of a building, or other place equipped to conduct scientific experiments, tests, investigations, etc., or to manufacture chemicals, medicines, or the like.
- laboratories — a building, part of a building, or other place equipped to conduct scientific experiments, tests, investigations, etc., or to manufacture chemicals, medicines, or the like.
- labour pains — the pains felt during the contractions of childbirth
- labouriously — Alternative form of laboriously.
- laboursaving — reducing (human) effort, hard work, or labour
- liberational — Relating to, or aiding, liberation; liberatory.
- liberty loan — any of the five bond issues of the U.S. government floated in World War I.
- library book — a book owned by a library
- load-bearing — bearing the weight that is carried by a structure
- lobster tail — the flesh of the tail of any of various crustaceans, esp. the Cape crawfish, prepared as food, often by broiling in the shell
- loganberries — Plural form of loganberry.
- lubrications — Plural form of lubrication.
- lucubrations — Plural form of lucubration.
- macrobiotics — a philosophically oriented program incorporating elements from several ancient cultures and emphasizing harmony with nature, especially through adherence to a diet consisting primarily of whole grains, beans, vegetables, and moderate amounts of seafood and fruit.
- malibu board — a lightweight, fiberglass-covered surfboard, usually about 10 feet (3 meters) long with a rounded nose and tail and a convex bottom for increased maneuverability.