9-letter words containing n, o, t, r, a
- notarized — Simple past tense and past participle of notarize.
- notarizes — Third-person singular simple present indicative form of notarize.
- notecards — An ambitious hypertext system developed at Xerox PARC, "designed to support the task of transforming a chaotic collection of unrelated thoughts into an integrated, orderly interpretation of ideas and their interconnections".
- notepaper — writing paper, especially that used in writing notes or personal correspondence and usually less than 8½ × 11 inches (21.6 × 27.9 cm) in size.
- nothosaur — An extinct semiaquatic carnivorous reptile of the Triassic period, having a slender body and long neck, related to the plesiosaurs.
- nucleator — having a nucleus.
- numerator — Arithmetic. the term of a fraction, usually above the line, that indicates the number of equal parts that are to be added together; the dividend placed over a divisor: The numerator of the fraction 2/3 is 2. Compare denominator (def 1).
- obscurant — a person who strives to prevent the increase and spread of knowledge.
- observant — quick to notice or perceive; alert.
- obumbrant — overhanging; projecting over another part.
- octonarii — lines with eight feet
- oenothera — any plant of the large taxonomically complicated American genus Oenothera, typically having yellow flowers that open in the evening: family Onagraceae
- on a tear — showing a sudden burst of energy
- on patrol — monitoring an area
- on stream — If something such as a new factory or a new system comes on stream or is brought on stream, it begins to operate or becomes available.
- on target — that is or may be a target or goal: The target group consisted of college graduates who earned more than $50,000 a year.
- on-stream — in or into regular operation, especially as part of a system, assembly line, or the like: When the new printing press goes on-stream, we'll be able to print twice as many newspapers a day.
- on-target — correct, accurate, or adhering closely to an anticipated outcome: an on-target forecast for the weekend weather.
- one-acter — a short play consisting of one act.
- one-track — having only one track.
- operantly — In an operant manner.
- operating — used or engaged in performing operations: an operating surgeon.
- operation — an act or instance, process, or manner of functioning or operating.
- orangutan — a large, long-armed anthropoid ape, Pongo pygmaeus, of arboreal habits, inhabiting Borneo and Sumatra: an endangered species.
- oratorian — a member of an Oratory.
- ordinated — Simple past tense and past participle of ordinate.
- ordinates — Plural form of ordinate.
- ordinator — One who ordains or establishes; a director.
- organists — Plural form of organist.
- organotin — of, concerned with, or being an organic compound with one or more tin atoms in its molecules: used as a pesticide, hitherto considered to decompose safely, now found to be toxic in the food chain
- orientals — Plural form of oriental.
- orientate — (UK, intransitive) To face (a given direction).
- originate — to take its origin or rise; begin; start; arise: The practice originated during the Middle Ages.
- orleanist — a supporter of the Orléans branch of the former French royal family and of its claim to the throne of France through descent from the younger brother of Louis XIV.
- ornaments — Plural form of ornament.
- ortanique — A citrus fruit that is a cross between an orange and a tangerine, developed in Jamaica in the 1920s.
- orthopnea — difficult or painful breathing except in an erect sitting or standing position.
- ostracean — a member of the family formerly called Ostracea
- other man — a man who is romantically or sexually involved with another man's wife or lover, especially a man who is having an affair with a married woman.
- outbrazen — to be more brazen or impudent than
- outlander — a foreigner; alien.
- outlinear — relating to an outline
- outraging — Present participle of outrage.
- outranged — Simple past tense and past participle of outrange.
- outranked — Simple past tense and past participle of outrank.
- outreason — (transitive) To surpass in reasoning; to reason better than.
- outstrain — to strain or stretch too much
- overeaten — Past participle of overeat.
- overpaint — to cover over with paint
- overplant — to plant more than is necessary or possible to sustain