12-letter words starting with o
- oak-panelled — having panels that are made of oak
- oak-root rot — a disease of oaks and other trees and woody plants, caused by the fungus Amillariella mellea (oak-root fungus) the fruiting body of which is the honey mushroom, and characterized by rotting roots, girdling of crown, and eventual death of the tree.
- oakland park — a town in S Florida.
- oamaru stone — a kind of limestone, of building quality, found at Oamaru on South Island, New Zealand
- oasification — The process of restoring water, soil, and plant life to an environment that has been degraded by soil erosion.
- obambulation — (obsolete) Wandering about; a casual outing.
- obcompressed — compressed or flattened in a way opposite to the usual, as back to front instead of side to side.
- obdurateness — The characteristic of being obdurate; stubbornness.
- obedientiary — The holder of a monastic rank or office below that of superior.
- oberammergau — a village in S Germany, SW of Munich: famous for the passion play performed there every ten years.
- obfuscations — to confuse, bewilder, or stupefy.
- object chill — ["Object CHILL - An Object Oriented Language for Systems Implementation", J. Winkler et al, ACM Comp Sci Conf 1992, pp. 139-147].
- object glass — objective (def 3).
- object value — (jargon) In industrial design, a measure of consumers' immediate desire for an object, even before they know or understand what it does. "Gassee may be nuts, but at least the BeBox has great object value."
- objectbroker — (programming) A distributed object system from DEC based on the CORBA standard.
- objectcenter — A product offering similar facilities to CodeCenter for the C++ language, plus class browsing facilities etc (formerly Saber-C++).
- objecteering — (programming, tool) An object-oriented design tool from Softeam, based on the Class Relation Methodology, with C++ code generation.
- objectifying — Present participle of objectify.
- objectivized — to cause to become concrete or objective; objectify.
- objet trouve — found object.
- oblanceolate — inversely lanceolate, as a leaf.
- obligational — obligatory.
- obligatorily — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
- obligingness — The quality of being obliging; the tendency to cater for the desires of others.
- obliterating — Present participle of obliterate.
- obliteration — the act of obliterating or the state of being obliterated.
- obliterative — Tending or serving to obliterate.
- oblivescence — the process of forgetting.
- obliviscence — the condition or fact of failing to remember or having failed to remember or of being absent-minded
- obmutescence — persistent silence
- obnubilation — to cloud over; becloud; obscure.
- oboe d'amore — a type of oboe pitched a minor third lower than the oboe itself. It is used chiefly in the performance of baroque music
- oboe d'amour — an oboe with a bulb-shaped bell that is pitched a minor third below the range of the conventional oboe and was much used in music of the Baroque period.
- obreptitious — having the characteristics of acquiring something by deceitful means
- obscurantism — opposition to the increase and spread of knowledge.
- obscurantist — opposition to the increase and spread of knowledge.
- obscurations — Plural form of obscuration.
- obsequiously — characterized by or showing servile complaisance or deference; fawning: an obsequious bow.
- observations — Plural form of observation.
- observership — someone or something that observes.
- obsolescence — the state, process, or condition of being or becoming obsolete.
- obsoleteness — no longer in general use; fallen into disuse: an obsolete expression.
- obstetrician — a physician who specializes in obstetrics. Abbreviation: OB, ob.
- obstreperate — to be extremely noisy or to create a resounding din
- obstreperous — resisting control or restraint in a difficult manner; unruly.
- obstructions — Plural form of obstruction.
- obtuse angle — an angle greater than 90° but less than 180°.
- occasionally — at times; from time to time; now and then.
- occidentally — In an occidental manner.
- occupational — of or relating to an occupation, trade, or calling: occupational guidance.
On this page, we collect all 12-letter words starting with letter O. It’s easy to find right word with a certain length. It is the easiest way to find 12-letter word that beginning with O to use in Scrabble or Crossword puzzles.