12-letter words containing n, a, i, b, o, u
- samurai bond — a bond issued in Japan and denominated in yen, available for purchase by nonresidents of Japan
- somnambulism — sleepwalking.
- somnambulist — sleepwalking.
- spiral-bound — having a spiral binding.
- subabdominal — below or beneath the abdomen
- subarachnoid — of, relating to, or situated below the arachnoid membrane.
- subarcuation — a structure that is somewhat arched
- subdiaconate — the office or dignity of a subdeacon.
- suberization — the impregnation of cell walls with suberin, causing the formation of cork.
- subhastation — a public auction or sale
- subjectional — the act of subjecting.
- sublineation — an underlining
- subordinated — placed in or belonging to a lower order or rank.
- subordinator — a conjunction introducing a subordinate clause, as when in They were glad when I finished.
- subsonically — at a velocity below that of sound
- substraction — the act or process of subtracting
- surfboarding — a long, narrow board on which a person stands or lies prone in surfboarding.
- tube station — an underground station where underground trains depart and leave, esp in London
- 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.
- turbinacious — with a peaty aroma or flavour
- umbilication — a central navellike depression.
- un-ignorable — to refrain from noticing or recognizing: to ignore insulting remarks.
- unactionable — furnishing ground for a lawsuit.
- unbiological — pertaining to biology.
- uncognizable — capable of being perceived or known.
- unconfinable — not able to be bound
- 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.
- unhospitable — not hospitable
- unmodifiable — incapable of being modified
- unnegotiable — capable of being negotiated: a negotiable salary demand.
- unnoticeable — attracting notice or attention; capable of being noticed: a noticeable lack of interest.
- unnoticeably — attracting notice or attention; capable of being noticed: a noticeable lack of interest.
- unobligatory — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
- unobtainable — to come into possession of; get, acquire, or procure, as through an effort or by a request: to obtain permission; to obtain a better income.
- unpolishable — incapable of being made smooth or shiny
- 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
- vocabularian — a person who is particularly or overly attentive to words