7-letter words starting with o
- o gauge — a model-railroad gauge of 1.25 inches (32 mm).
- o grade — the basic level of the Scottish Certificate of Education, now replaced by Standard Grade
- o level — a public examination for secondary-school students, usually 15 to 16 years old, testing basic knowledge in various subjects, required before advancing to more specialized courses of study.
- o'boyle — Patrick Aloysius, 1896–1987, U.S. Roman Catholic clergyman: archbishop of Washington, D.C., 1947–73.
- o'brien — Edna, born 1930, Irish novelist, short-story writer, and playwright.
- o'casey — Sean [shawn,, shahn] /ʃɔn,, ʃɑn/ (Show IPA), 1880–1964, Irish playwright.
- o'clock — of, by, or according to the clock (used in specifying the hour of the day): It is now 4 o'clock.
- o'kelly — Seán Thomas [shawn,, shahn] /ʃɔn,, ʃɑn/ (Show IPA), (Sean Tomas O Ceallaigh) 1882–1966, Irish political leader: president of Ireland 1945–59.
- o'neill — Eugene (Gladstone) 1888–1953, U.S. playwright: Nobel prize 1936.
- o'small — (language) A small, concise, formally defined object-oriented language intended for teaching, by Andreas Hense <[email protected]>. O'small requires sml-yacc, sml-lex and sml-noshare. Binaries are provided for SPARC and it is probably portable to other Unix systems. There is also an interpreter in Miranda.
- o'toole — (Seamus ˈʃeɪməs) Peter. 1932–2013, British actor, born in Ireland. His films include Lawrence of Arabia (1962), The Lion in Winter (1968), High Spirits (1988), Fairytale (1998) and Venus (2006); stage appearances include Jeffrey Bernard is Unwell (1989)
- o-logic — An object-oriented deductive language/database system.
- oak-tag — tagboard.
- oakdale — a town in E Minnesota.
- oakland — a seaport in W California, on San Francisco Bay.
- oakleaf — (often, attributive) The leaf of the oak.
- oaklike — resembling or having similarities to an oak leaf or tree
- oakling — an immature or not fully-grown oak tree
- oaklisp — (language) A portable object-oriented Scheme by K. Lang and Barak Perlmutter of Yale. Oaklisp uses a superset of Scheme syntax. It is based on generic operations rather than functions, and features anonymous classes, multiple inheritance, a strong error system, setters and locators for operations and a facility for dynamic binding. Version 1.2 includes an interface, bytecode compiler, run-time system and documentation.
- oakmoss — a lichen, Evernia pranastri, growing on oak and other trees, yielding a resin used in the manufacture of perfumes.
- oaktree — An oak (tree).
- oakwood — A wood populated with oak trees.
- oarfish — any long, ribbon-shaped, silvery fish of the genus Regalecus, of deep tropical waters, having a red dorsal fin along the spine that rises to a crest, and reaching a length of 30 feet (9 meters).
- oarlock — any of various devices providing a pivot for an oar in rowing, especially a swiveling, crutchlike or ringlike metal device projecting above a gunwale.
- oarsman — a person who rows a boat, especially a racing boat; rower.
- oarsmen — a person who rows a boat, especially a racing boat; rower.
- oarweed — any of various brown seaweeds, esp a kelp of the genus Laminaria, with long broad fronds, common below the low-water mark
- oastler — Richard. 1789–1861, British social reformer; he campaigned against child labour and helped achieve the ten-hour day (1847)
- oatcake — a cake, usually thin and brittle, made of oatmeal.
- oatlike — a cereal grass, Avena sativa, cultivated for its edible seed.
- oatmeal — meal made from ground or rolled oats.
- obadiah — a Minor Prophet.
- obconic — conical, with the attachment at the pointed end.
- obelias — Plural form of obelia.
- obelion — an area of the skull where the sagittal suture meets the parietal foramina
- obelise — to mark (a word or passage) with an obelus.
- obelisk — a tapering, four-sided shaft of stone, usually monolithic and having a pyramidal apex.
- obelism — the practice of marking or adding comments on passages in a text
- obelize — to mark (a word or passage) with an obelus.
- oberlin — Jean Frédéric [French zhahn frey-dey-reek] /French ʒɑ̃ freɪ deɪˈrik/ (Show IPA), 1740–1826, Alsatian clergyman.
- obesely — very fat or overweight; corpulent.
- obesity — the condition of being very fat or overweight; corpulence: His obesity puts him at risk for major health problems.
- obeying — to comply with or follow the commands, restrictions, wishes, or instructions of: to obey one's parents.
- obitual — Of or relating to obits.
- objects — Say something to express one's disapproval of or disagreement with something.
- oblasti — (in Russia and the Soviet Union) an administrative division corresponding to an autonomous province.
- oblasts — Plural form of oblast.
- oblates — Plural form of oblate.
- oblatum — (geometry) An oblate spheroid; a figure described by the revolution of an ellipse about its minor axis.
- obliged — to require or constrain, as by law, command, conscience, or force of necessity.
On this page, we collect all 7-letter words starting with letter O. It’s easy to find right word with a certain length. It is the easiest way to find 7-letter word that beginning with O to use in Scrabble or Crossword puzzles.