10-letter words containing t, g, r
- obligatory — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
- obrogation — the annulment or alteration of a law by the enactment of a new one.
- octangular — having eight angles.
- octogenary — (obsolete) Of eighty years of age.
- oglethorpe — James Edward, 1696–1785, British general: founder of the colony of Georgia.
- old growth — forest growth consisting of mature or overmature trees.
- old stager — stager (def 1).
- old-growth — designating or of a forest characterized by very large, very old trees and great biodiversity
- on draught — Beer that is on draught is kept in and served from a barrel rather than a bottle.
- orang-utan — a large, long-armed anthropoid ape, Pongo pygmaeus, of arboreal habits, inhabiting Borneo and Sumatra: an endangered species.
- orange-tip — a European butterfly, Anthocharis cardamines, having whitish wings with orange-tipped forewings: family Pieridae
- orangequat — A citrus tree, a cross between an orange and a kumquat.
- orangeroot — The plant goldenseal.
- orangutang — a large, long-armed anthropoid ape, Pongo pygmaeus, of arboreal habits, inhabiting Borneo and Sumatra: an endangered species.
- orangutans — Plural form of orangutan.
- ordinating — Present participle of ordinate.
- organ loft — a loft in a church or cathedral that houses the keyboard of a pipe organ
- organ stop — a set of organ pipes allowed to sound as a group by stopping all others
- organicist — Philosophy. the view that some systems resemble organisms in having parts that function in relation to the whole to which they belong. Compare holism (def 1).
- organicity — noting or pertaining to a class of chemical compounds that formerly comprised only those existing in or derived from plants or animals, but that now includes all other compounds of carbon.
- originated — Simple past tense and past participle of originate.
- originates — Third-person singular simple present indicative form of originate.
- originator — to take its origin or rise; begin; start; arise: The practice originated during the Middle Ages.
- orthogenic — Psychology. of, concerned with, or providing corrective treatment for mentally retarded or seriously disturbed children: orthogenic class.
- orthogonal — Mathematics. Also, orthographic. pertaining to or involving right angles or perpendiculars: an orthogonal projection. (of a system of real functions) defined so that the integral of the product of any two different functions is zero. (of a system of complex functions) defined so that the integral of the product of a function times the complex conjugate of any other function equals zero. (of two vectors) having an inner product equal to zero. (of a linear transformation) defined so that the length of a vector under the transformation equals the length of the original vector. (of a square matrix) defined so that its product with its transpose results in the identity matrix.
- orthograde — walking in an upright manner
- orthograph — An orthographic projection.
- oryctology — the study of fossils, minerals, and rocks
- osteologer — One versed in osteology; an osteologist.
- othergates — different or other
- otherguess — of another kind; different.
- outbargain — to surpass in bargaining
- outbraving — Present participle of outbrave.
- outgeneral — to outdo or surpass in generalship.
- outglitter — to glitter more than
- outgrowing — Present participle of outgrow.
- outgrowths — Plural form of outgrowth.
- outmigrant — A person who has migrated from one place to another, especially within a country.
- outpouring — outpouring.
- outrageous — of the nature of or involving gross injury or wrong: an outrageous slander.
- outraising — Present participle of outraise.
- outranging — Present participle of outrange.
- outranking — Present participle of outrank.
- outredding — the act of redeeming land or goods
- outriggers — Plural form of outrigger.
- outrigging — Chiefly Nautical. to put in proper order for working or use. to fit (a ship, mast, etc.) with the necessary shrouds, stays, etc. to fit (shrouds, stays, sails, etc.) to the mast, yard, or the like.
- outrightly — Outright.
- outrunning — Present participle of outrun.
- outscoring — Present participle of outscore.
- outstaring — Present participle of outstare.