| class | (noun) education imparted in a series of lessons or meetings | Synonyms: course, course of instruction, course of study |
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| (noun) elegance in dress or behavior | - |
| (noun) a collection of things sharing a common attribute | Synonyms: category, family |
| (noun) people having the same social, economic, or educational status | Synonyms: social class, socio-economic class, stratum |
| (noun) (biology) a taxonomic group containing one or more orders | - |
| (noun) a body of students who are taught together | Synonyms: course, form, grade |
| (noun) a body of students who graduate together | Synonyms: year |
| (noun) a league ranked by quality | Synonyms: division |
| classic | (noun) a creation of the highest excellence | - |
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| (noun) an artist who has created classic works | - |
| classical | (noun) traditional genre of music conforming to an established form and appealing to critical interest and developed musical taste | Synonyms: classical music, serious music |
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| classicalism | (noun) a movement in literature and art during the 17th and 18th centuries in Europe that favored rationality and restraint and strict forms | Synonyms: classicism |
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| classicism | (noun) a movement in literature and art during the 17th and 18th centuries in Europe that favored rationality and restraint and strict forms | Synonyms: classicalism |
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| classicist | (noun) an artistic person who adheres to classicism | - |
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| (noun) a student of ancient Greek and Latin | Synonyms: classical scholar |
| classics | (noun) study of the literary works of ancient Greece and Rome | - |
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| classification | (noun) the act of distributing things into classes or categories of the same type | Synonyms: assortment, categorisation, categorization, compartmentalisation, compartmentalization |
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| (noun) restriction imposed by the government on documents or weapons that are available only to certain authorized people | - |
| (noun) the basic cognitive process of arranging into classes or categories | Synonyms: categorisation, categorization, sorting |
| (noun) a group of people or things arranged by class or category | Synonyms: categorisation, categorization |
| classified | (noun) a short ad in a newspaper or magazine (usually in small print) and appearing along with other ads of the same type | Synonyms: classified ad, classified advertisement |
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| classifier | (noun) an algorithm that implements classification. | - |
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| (noun) a word or morpheme used in some languages in certain contexts (such as counting) to indicate the semantic class to which the counted item belongs | - |
| (noun) a person who creates classifications | - |
| classmate | (noun) an acquaintance that you go to school with | Synonyms: class fellow, schoolfellow, schoolmate |
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| classroom | (noun) a room in a school where lessons take place | Synonyms: schoolroom |
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| classwork | (noun) the part of a student's work that is done in the classroom | - |
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| cutlass | (noun) a short heavy curved sword with one edge; formerly used by sailors | Synonyms: cutlas |
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| cutlassfish | (noun) long-bodied marine fishes having a long whiplike scaleless body and sharp teeth; closely related to snake mackerel | Synonyms: frost fish, hairtail |
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| declassification | (noun) reduction or removal by the government of restrictions on a classified document or weapon | - |
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| eyeglass | (noun) lens for correcting defective vision in one eye; held in place by facial muscles | Synonyms: monocle |
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| eyeglasses | (noun) (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision | Synonyms: glasses, specs, spectacles |
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| fiberglass | (noun) a covering material made of glass fibers in resins | Synonyms: fibreglass |
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| fibreglass | (noun) a covering material made of glass fibers in resins | Synonyms: fiberglass |
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| glass | (noun) a container made of glass for holding liquids while drinking | Synonyms: drinking glass |
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| (noun) an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant | Synonyms: chalk, chicken feed, crank, deoxyephedrine, ice, meth, methamphetamine, methamphetamine hydrochloride, Methedrine, shabu, trash |
| (noun) a mirror; usually a ladies' dressing mirror | Synonyms: looking glass |
| (noun) a small refracting telescope | Synonyms: field glass, spyglass |
| (noun) glassware collectively | - |
| (noun) the quantity a glass will hold | Synonyms: glassful |
| (noun) a brittle transparent solid with irregular atomic structure | - |
| glassblower | (noun) someone skilled in blowing bottles from molten glass | - |
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| glasses | (noun) (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision | Synonyms: eyeglasses, specs, spectacles |
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| glassful | (noun) the quantity a glass will hold | Synonyms: glass |
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| glasshouse | (noun) a building with glass walls and roof; for the cultivation and exhibition of plants under controlled conditions | Synonyms: greenhouse |
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| glassmaker | (noun) someone who makes glass | - |
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| glassware | (noun) an article of tableware made of glass | Synonyms: glasswork |
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| glasswork | (noun) an article of tableware made of glass | Synonyms: glassware |
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| glassworker | (noun) someone who cuts flat glass to size | Synonyms: glass-cutter, glass cutter, glazer, glazier |
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| glassworks | (noun) a workplace where glass is made | - |
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| glasswort | (noun) fleshy maritime plant having fleshy stems with rudimentary scalelike leaves and small spikes of minute flowers; formerly used in making glass | Synonyms: Salicornia europaea, samphire |
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| (noun) bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash | Synonyms: barilla, kali, kelpwort, Salsola kali, Salsola soda, saltwort |
| hourglass | (noun) a sandglass that runs for sixty minutes | - |
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| isinglass | (noun) any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves; used as dielectrics because of their resistance to electricity | Synonyms: mica |
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| lass | (noun) a girl or young woman who is unmarried | Synonyms: jeune fille, lassie, young girl |
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| lassie | (noun) a girl or young woman who is unmarried | Synonyms: jeune fille, lass, young girl |
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| lassitude | (noun) weakness characterized by a lack of vitality or energy | Synonyms: inanition, lethargy, slackness |
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| (noun) a feeling of lack of interest or energy | Synonyms: languor, listlessness |
| (noun) a state of comatose torpor (as found in sleeping sickness) | Synonyms: lethargy, sluggishness |
| lasso | (noun) a long noosed rope used to catch animals | Synonyms: lariat, reata, riata |
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| lowerclassman | (noun) an undergraduate who is not yet a senior | Synonyms: underclassman |
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| molasses | (noun) thick dark syrup produced by boiling down juice from sugar cane; especially during sugar refining | - |
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| neoclassicism | (noun) revival of a classical style (in art or literature or architecture or music) but from a new perspective or with a new motivation | - |
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| neoclassicist | (noun) an advocate of neoclassicism | - |
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| paillasse | (noun) mattress consisting of a thin pad filled with straw or sawdust | Synonyms: palliasse |
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| plexiglass | (noun) a light transparent weather resistant thermoplastic | Synonyms: Plexiglas |
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| pulassan | (noun) fruit of an East Indian tree similar to the rambutan but sweeter | Synonyms: pulasan |
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| (noun) East Indian fruit tree bearing fruit similar to but sweeter than that of the rambutan | Synonyms: Nephelium mutabile, pulasan, pulasan tree |
| reclassification | (noun) classifying something again (usually in a new category) | - |
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| sandglass | (noun) timepiece in which the passage of time is indicated by the flow of sand from one transparent container to another through a narrow passage | - |
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| spyglass | (noun) a small refracting telescope | Synonyms: field glass, glass |
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| subclass | (noun) (biology) a taxonomic category below a class and above an order | - |
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| sunglass | (noun) a convex lens that focuses the rays of the sun; used to start a fire | - |
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| sunglasses | (noun) (plural) spectacles that are darkened or polarized to protect the eyes from the glare of the sun | Synonyms: dark glasses, shades |
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| superclass | (noun) (biology) a taxonomic class below a phylum and above a class | - |
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| thalassaemia | (noun) an inherited form of anemia caused by faulty synthesis of hemoglobin | Synonyms: Mediterranean anaemia, Mediterranean anemia, thalassemia |
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| thalassemia | (noun) an inherited form of anemia caused by faulty synthesis of hemoglobin | Synonyms: Mediterranean anaemia, Mediterranean anemia, thalassaemia |
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| underclass | (noun) the social class lowest in the social hierarchy | Synonyms: lower class |
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| underclassman | (noun) an undergraduate who is not yet a senior | Synonyms: lowerclassman |
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| weatherglass | (noun) a simple barometer for indicating changes in atmospheric pressure | - |
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| windlass | (noun) lifting device consisting of a horizontal cylinder turned by a crank on which a cable or rope winds | Synonyms: winch |
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| wineglass | (noun) a glass that has a stem and in which wine is served | - |
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