12-letter words containing a, l, b, o
- unreformable — not able to be reformed or reclaimed
- unreportable — not able to be reported, relayed, or spoken of
- unreprovable — not able to be reproved, reproached, or criticized
- unresolvable — not able to be resolved or brought to a satisfactory resolution
- unrestorable — to bring back into existence, use, or the like; reestablish: to restore order.
- unsalubrious — favorable to or promoting health; healthful: salubrious air.
- unseasonable — not seasonable; being out of season; unseasonal: unseasonable weather.
- unseasonably — not seasonable; being out of season; unseasonal: unseasonable weather.
- unshadowable — not able to be shadowed
- unsupposable — not able to be supposed
- unvoyageable — not able to be sailed or otherwise journeyed over; untraversable; innavigable
- urbanologist — a sociologist specializing in urban life and problems
- valve bounce — A valve bounce is the bouncing of a poppet valve on its seat when it is closing.
- verbal irony — irony in which a person says or writes one thing and means another, or uses words to convey a meaning that is the opposite of the literal meaning.
- vocabularian — a person who is particularly or overly attentive to words
- vocabularied — having a vocabulary as specified
- vuelta abajo — a region in W Cuba.
- walking boot — a lightweight rigid knee-length boot with a reinforced sole and straps that fasten around the leg, used for support after a sprain or fracture
- warm-blooded — Also, endothermic. designating or pertaining to animals, as mammals and birds, whose blood ranges in temperatures from about 98° to 112°F (37° to 44°C) and remains relatively constant, irrespective of the temperature of the surrounding medium; homoiothermal.
- water bottle — container that holds drinking water
- webliography — a list of electronic documents, websites, or other resources available on the World Wide Web, especially those relating to a particular subject: a student's annotated webliography on Shakespeare.
- west babylon — a city on S Long Island, in SE New York.
- wheelbarrows — Plural form of wheelbarrow.
- wobble board — a piece of fibreboard used as a musical instrument, producing a characteristic sound when flexed
- womb-leasing — bearing a child on behalf of a couple unable to have a child; surrogacy
- wood warbler — warbler (def 2).
- workableness — The quality or state of being workable, or the extent to which a thing is workable.
- world beater — If you describe a person or thing as a world beater, you mean that they are better than most other people or things of their kind.
- world-beater — a person or thing that surpasses all others of like kind, as in quality, ability, or endurance.
- xylobalsamum — the dried, fragrant wood of the Balsamodendron gileadense that produces resin known as Balm of Gilead
- zalambdodont — (zoology) Having teeth with two ridges that meet at an angle, forming the letter lambda.