12-letter words containing a, r, b, o, i
- timbromaniac — a person who is passionate about stamp-collecting
- tolerability — capable of being tolerated; endurable: His arrogance is no longer tolerable.
- transponible — capable of being transposed.
- tribological — relating to tribology
- trombidiasis — infestation with mites of the family Trombiculidae
- tubocurarine — the principal active alkaloid of curare, C 38 H 44 Cl 2 N 2 O, used as a muscle relaxant, especially as an adjunct to anesthesia.
- tubulifloral — (of a plant) tubuliflorous
- turbinacious — with a peaty aroma or flavour
- un-ignorable — to refrain from noticing or recognizing: to ignore insulting remarks.
- unforgivable — to grant pardon for or remission of (an offense, debt, etc.); absolve.
- unforgivably — in an unforgivable manner
- unformidable — causing fear, apprehension, or dread: a formidable opponent.
- unobligatory — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
- unprofitable — being without profit; not showing or turning a profit: a series of unprofitable ventures.
- unsalubrious — favorable to or promoting health; healthful: salubrious air.
- urbanisation — the act or fact of urbanizing, or taking on the characteristics of a city: Urbanization has led to more air pollution and increasing childhood asthma.
- urbanization — the act or fact of urbanizing, or taking on the characteristics of a city: Urbanization has led to more air pollution and increasing childhood asthma.
- urbanologist — a sociologist specializing in urban life and problems
- 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.
- vertebration — vertebrate formation.
- vocabularian — a person who is particularly or overly attentive to words
- vocabularied — having a vocabulary as specified
- wakeboarding — (sports) A water sport where a rider on a small board is towed by a motor boat, and attached by a cable.
- 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.
- window board — a thin board serving as a stool of a window.