20-letter words starting with o
- obfuscated c contest — (programming) The International Obfuscated C Code Contest (IOCCC) is an annual contest run since 1984 over Usenet by Landon Curt Noll and friends. The overall winner is whoever produces the most unreadable, creative, and bizarre (but working) C program. Various other prizes are awarded at the judges' whim. C's terse syntax and macro-preprocessor facilities give contestants a lot of maneuvering room. The winning programs often manage to be simultaneously funny, breathtaking works of art and horrible examples of how *not* to code in C. This relatively short and sweet hello, world program demonstrates obfuscated C: /* HELLO WORLD program * by Jack Applin and Robert Heckendorn, 1985 */ main(v,c)char**c;{for(v[c++]="Hello, world!\n)"; (!!c)[*c]&&(v--||--c&&execlp(*c,*c,c[!!c]+!!c,!c)); **c=!c)write(!!*c,*c,!!**c);} Here's another good one: /* Program to compute an approximation of pi * by Brian Westley, 1988 */ #define _ -F<00||--F-OO--; int F=00,OO=00; main(){F_OO();printf("%1.3f\n",4.*-F/OO/OO);}F_OO() { _-_-_-_ _-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_-_-_-_-_ _-_-_-_-_-_-_-_ _-_-_-_ } Note that this program works by computing its own area. For more digits, write a bigger program.
- object role modeling — (programming) (ORM) A conceptual modelling approach that pictures the application world as a set of objects that play roles (parts in relationships, which may be unary, binary or higher order). ORM provides both graphical and textual languages that enable models to be expressed naturally. For data modelling purposes, its graphical language is more expressive than ER or UML.
- objective complement — object complement.
- objective relativism — the doctrine that knowledge of real objects is relative to the individual.
- obsessive-compulsive — of or relating to a personality style characterized by perfectionism, indecision, conscientiousness, concern with detail, rigidity, and inhibition.
- occupation franchise — the right of a tenant to vote in national and local elections
- occupation groupings — a system of classifying people according to occupation, based originally on information obtained by government census and subsequently developed by market research. The classifications are used by the advertising industry to identify potential markets. The groups are A, B, C1, C2, D, and E
- occupational disease — Also called industrial disease. a disease caused by the conditions or hazards of a particular occupation.
- occupational pension — a pension scheme provided for the members of a particular occupation or by a specific employer or group of employers
- occupational therapy — a form of therapy in which patients are encouraged to engage in vocational tasks or expressive activities, as art or dance, usually in a social setting.
- ode on a grecian urn — a poem (1819) by Keats.
- ode to a nightingale — a poem (1819) by Keats.
- ode to the west wind — a poem (1820) by Shelley.
- of (...) consequence — Something or someone of consequence is important or valuable. If something or someone is of no consequence, or of little consequence, they are not important or valuable.
- of (the) deepest dye — of the most marked, esp. the worst, sort
- of no/little account — If you say that something is of no account or of little account, you mean that it is very unimportant and is not worth considering.
- of value/of no value — If something is of value, it is useful or important. If it is of no value, it has no usefulness or importance.
- off the beaten track — formed or shaped by blows; hammered: a dish of beaten brass.
- off-the-job training — training which is carried out away from your normal place of work
- officer of the guard — an officer, acting under the officer of the day, who is responsible for the instruction, discipline, and performance of duty of the guard in a post, camp, or station. Abbreviation: OG, O.G.
- officer of the watch — the officer primarily responsible for the navigation of a ship, in the absence of the captain, during a certain watch.
- official secrets act — law: legislation protecting state secret
- old english sheepdog — one of an English breed of large working dogs having a long, shaggy, gray or blue-merle and white coat that hangs over the eyes, and a bobbed tail, originally developed to drive sheep and cattle.
- old man of the woods — an edible, mild-tasting mushroom, Strobilomyces floccopus, occurring in coniferous woodlands of eastern North America.
- olfactory anesthesia — absence or loss of the sense of smell.
- omega-3 (fatty acid) — a type of polyunsaturated fatty acid in fish oil, shellfish, soybeans, etc., linked to low cholesterol and low LDL levels
- omega-minus particle — a baryon with strangeness −3, isotopic spin 0, and negative charge; predicted from the mathematics of the Eightfold Way and subsequently discovered. Symbol: Ω −.
- on (or off) the air — that is (or is not) broadcasting or being broadcast
- on course/off course — If a ship or aircraft is on course, it is travelling along the correct route. If it is off course, it is no longer travelling along the correct route.
- on everyone's tongue — prevailing as common gossip
- on o's best behavior — If someone is on their best behavior, they are trying very hard to behave well.
- on one's own account — If you take part in a business activity on your own account, you do it for yourself, and not as a representative or employee of a company.
- on someone's account — Your feelings on someone's account are the feelings you have about what they have experienced or might experience, especially when you imagine yourself to be in their situation.
- on that/this account — You can use on that account or on this account when you want to say that something happens for the reason you have just mentioned.
- on the drawing board — in the planning stage
- on the factory floor — in a factory; as a factory worker
- on the shady side of — beyond (a given age); older than
- on the starboard bow — within 45 degrees to the starboard of straight ahead
- on the sunny side of — younger than (a specified age)
- on tiptoe/on tiptoes — If you do something on tiptoe or on tiptoes, you do it standing or walking on the front part of your foot, without putting your heels on the ground.
- on top/on top of sth — You can use on top or on top of to indicate that a particular problem exists in addition to a number of other problems.
- one's heart's desire — If you say that someone or something is your heart's desire, you mean that you want that person or thing very much.
- one's misspent youth — the period when one is young and spend's one's time doing foolish, bad, or frivolous things
- one's spiritual home — Your spiritual home is the place where you feel that you belong, usually because your ideas or attitudes are the same as those of the people who live there.
- ontological argument — an a priori argument for the existence of God, asserting that as existence is a perfection, and as God is conceived of as the most perfect being, it follows that God must exist; originated by Anselm, later used by Duns Scotus, Descartes, and Leibniz.
- open learning centre — an establishment which provides further education on a flexible part-time basis
- operant conditioning — conditioning (def 1).
- operating conditions — Operating conditions are a set of conditions for operating a particular system or process.
- operation barbarossa — the codename for Hitler's invasion (1941) of Russia
- operational calculus — a method for solving a differential equation by treating differential operators as ordinary algebraic quantities, thus obtaining a simpler problem.
On this page, we collect all 20-letter words starting with letter O. It’s easy to find right word with a certain length. It is the easiest way to find 20-letter word that beginning with O to use in Scrabble or Crossword puzzles.