| quarantine | (noun) isolation to prevent the spread of infectious disease | - |
|---|
| (noun) enforced isolation of patients suffering from a contagious disease in order to prevent the spread of disease | - |
| quark | (noun) fresh unripened cheese of a smooth texture made from pasteurized milk, a starter, and rennet | Synonyms: quark cheese |
|---|
| (noun) (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3 | - |
| quarrel | (noun) an arrow that is shot from a crossbow; has a head with four edges | - |
|---|
| (noun) an angry dispute | Synonyms: dustup, row, run-in, words, wrangle |
| quarreler | (noun) a disputant who quarrels | Synonyms: quarreller |
|---|
| quarreller | (noun) a disputant who quarrels | Synonyms: quarreler |
|---|
| quarrelsomeness | (noun) an inclination to be quarrelsome and contentious | Synonyms: contentiousness |
|---|
| quarrier | (noun) a man who works in a quarry | Synonyms: quarryman |
|---|
| quarry | (noun) animal hunted or caught for food | Synonyms: prey |
|---|
| (noun) a surface excavation for extracting stone or slate | Synonyms: pit, stone pit |
| (noun) a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence | Synonyms: fair game, prey, target |
| quarrying | (noun) the extraction of building stone or slate from an open surface quarry | - |
|---|
| quarryman | (noun) a man who works in a quarry | Synonyms: quarrier |
|---|
| quart | (noun) a United States liquid unit equal to 32 fluid ounces; four quarts equal one gallon | - |
|---|
| (noun) a British imperial capacity measure (liquid or dry) equal to 2 pints or 1.136 liters | - |
| (noun) a United States dry unit equal to 2 pints or 67.2 cubic inches | Synonyms: dry quart |
| quartan | (noun) a malarial fever that recurs every fourth day | - |
|---|
| quarter | (noun) clemency or mercy shown to a defeated opponent | - |
|---|
| (noun) the rear part of a ship | Synonyms: after part, poop, stern, tail |
| (noun) piece of leather that comprises the part of a shoe or boot covering the heel and joining the vamp | - |
| (noun) a district of a city having some distinguishing character | - |
| (noun) an unspecified person | - |
| (noun) a United States or Canadian coin worth one fourth of a dollar | - |
| (noun) one of four equal parts | Synonyms: fourth, fourth part, one-fourth, one-quarter, quartern, twenty-five percent |
| (noun) a quarter of a hundredweight (25 pounds) | - |
| (noun) a quarter of a hundredweight (28 pounds) | - |
| (noun) one of the four major division of the compass | - |
| (noun) one of four periods into which the school year is divided | - |
| (noun) (football, professional basketball) one of four divisions into which some games are divided | - |
| (noun) a fourth part of a year; three months | - |
| (noun) a unit of time equal to 15 minutes or a quarter of an hour | - |
| quarterback | (noun) (American football) the position of the football player in the backfield who directs the offensive play of his team | Synonyms: field general, signal caller |
|---|
| (noun) (football) the person who plays quarterback | Synonyms: field general, signal caller |
| quarterdeck | (noun) the stern area of a ship's upper deck | - |
|---|
| quarterfinal | (noun) one of the four competitions in an elimination tournament whose winners go on to play in the semifinals | - |
|---|
| quartering | (noun) dividing into four equal parts | - |
|---|
| (noun) living accommodations (especially those assigned to military personnel) | - |
| (noun) a coat of arms that occupies one quarter of an escutcheon; combining four coats of arms on one shield usually represented intermarriages | - |
| quarterlight | (noun) car window consisting of a small pivoted glass vent in the door of a car | - |
|---|
| quarterly | (noun) a periodical that is published every quarter (or four issues per year) | - |
|---|
| quartermaster | (noun) an army officer who provides clothing and subsistence for troops | - |
|---|
| quartern | (noun) one of four equal parts | Synonyms: fourth, fourth part, one-fourth, one-quarter, quarter, twenty-five percent |
|---|
| quarters | (noun) housing available for people to live in | Synonyms: living quarters |
|---|
| quarterstaff | (noun) a long stout staff used as a weapon | - |
|---|
| quartervine | (noun) woody flowering vine of southern United States; stems show a cross in transverse section | Synonyms: Bignonia capreolata, cross vine, quarter-vine, trumpet flower |
|---|
| quartet | (noun) a musical composition for four performers | Synonyms: quartette |
|---|
| (noun) four people considered as a unit | Synonyms: foursome, quartette |
| (noun) a set of four similar things considered as a unit | Synonyms: quadruple, quadruplet, quartette |
| (noun) four performers or singers who perform together | Synonyms: quartette |
| (noun) the cardinal number that is the sum of three and one | Synonyms: 4, four, foursome, IV, Little Joe, quadruplet, quatern, quaternary, quaternion, quaternity, tetrad |
| quartette | (noun) a musical composition for four performers | Synonyms: quartet |
|---|
| (noun) four people considered as a unit | Synonyms: foursome, quartet |
| (noun) a set of four similar things considered as a unit | Synonyms: quadruple, quadruplet, quartet |
| (noun) four performers or singers who perform together | Synonyms: quartet |
| quartic | (noun) an algebraic equation or function of the fourth degree | Synonyms: biquadrate, biquadratic, fourth power |
|---|
| quartile | (noun) (statistics) any of three points that divide an ordered distribution into four parts each containing one quarter of the scores | - |
|---|
| quarto | (noun) the size of a book whose pages are made by folding a sheet of paper twice to form four leaves | Synonyms: 4to |
|---|
| quartz | (noun) a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities | - |
|---|
| (noun) colorless glass made of almost pure silica | Synonyms: crystal, lechatelierite, quartz glass, vitreous silica |
| quartzite | (noun) hard metamorphic rock consisting essentially of interlocking quartz crystals | - |
|---|