Alphabetical word directory
English words starting with Q
Showing words 1–120 of 239. Choose a word to read its meaning, etymology and origin.
q-tip
nA small stick with a wad of cotton wool at each end, used for cleaning the ears or applying cosmetics.
qatari
adjRelating to Qatar or its people.
qigong
nA Chinese system of physical exercises and breathing control related to tai chi, used for health, meditation, and martial arts training.
quack
nthe harsh sound made by a duck
quackery
nThe methods, practices, or claims of a person who pretends to have medical knowledge or skills; medical fraud.
quad
nA quadrangle or courtyard, especially on a college campus.
quadrangle
na flat shape with four straight sides and four angles.
quadrant
nA quarter of a circle or of its circumference.
quadratic
adjInvolving a quantity or variable that is squared (raised to the power of two).
quadrature
nthe process of constructing a square equal in area to a given figure, especially a circle.
quadrennial
adjHappening once every four years.
quadriceps
nA large muscle at the front of the thigh with four parts, which helps to straighten the leg.
quadrilateral
adjHaving four sides.
quadrille
na lively square dance for four couples, popular in the 18th and 19th centuries.
quadrillion
nthe number 1,000,000,000,000,000 (10^15)
quadriplegia
nParalysis of all four limbs and usually the trunk.
quadriplegic
adjaffected by or relating to paralysis of all four limbs; tetraplegic.
quadruped
nan animal that has four feet
quadruple
adjconsisting of four parts, members, or elements; fourfold.
quadruplet
none of four children or animals born to the same mother at the same time
quadrupling
vincreasing or becoming four times as great or as numerous.
quadrupole
nA system or arrangement of four magnetic poles or electric charges, especially two positive and two negative arranged alternately.
quaff
vTo drink a large amount of something quickly and heartily.
quagga
nAn extinct South African zebra that had a yellowish-brown coat with darker stripes mainly on the head, neck, and forequarters.
quagmire
nAn area of soft, wet ground that you sink into.
quahog
nA large, edible, hard-shelled clam found along the Atlantic coast of North America.
quail
nA small, short-tailed bird that is often hunted for sport or food.
quaint
adjAttractively unusual or old-fashioned.
quaintly
advin an attractively unusual or old-fashioned manner.
quaintness
nthe quality of being attractively unusual or old-fashioned.
quake
vTo shake or tremble, especially from fear or because of an earthquake.
Quaker
nA member of the Religious Society of Friends, a Christian group known for its emphasis on direct experience of God, simplicity, and pacifism.
quaking
adjShaking or trembling, typically as a result of fear, cold, or weakness.
quale
nA quality or property as perceived or experienced by a conscious observer, especially a subjective sensory experience.
qualification
nAn official record or achievement (such as a degree, certificate, or skill) that proves you have the ability to do something.
qualified
adjHaving passed the necessary examinations or completed the necessary training to do a particular job or activity.
qualifier
nA person or team that qualifies for a competition or its next stage.
qualify
vto have or achieve the necessary skills, knowledge, or ability to do something
qualifying
adjServing as a qualification or meeting a necessary standard.
qualitative
adjrelating to the quality or standard of something rather than its quantity.
qualitatively
advIn a way that relates to or involves the quality or character of something, rather than its quantity or amount.
quality
nThe standard of something as measured against other things of a similar kind; the degree of excellence of something.
quality-assurance
nThe maintenance of a desired level of quality in a service or product, especially by means of attention to every stage of the process of delivery or production.
quality-control
nThe activity of checking goods as they are produced to make sure their quality is acceptable.
quality-of-care
noun phraseThe degree to which health services for individuals and populations increase the likelihood of desired health outcomes and are consistent with current professional knowledge.
quality-of-life
nThe standard of health, comfort, and happiness experienced by an individual or group.
qualm
na feeling of doubt or worry about whether what you are doing is right
qualms
nfeelings of doubt or worry about whether what you are doing is right
quandary
na state of uncertainty or perplexity, especially as requiring a difficult choice between equally undesirable options.
quant
nA person who specializes in or is skilled in the application of mathematical and statistical techniques, especially in finance.
quantifiable
adjable to be expressed or measured as a quantity.
quantification
nThe act or process of measuring or expressing something as a quantity or amount.
quantified
adjExpressed or measured as a quantity.
quantifier
n(logic, grammar) a word or phrase (such as 'all', 'some', or 'no') that expresses quantity or scope.
quantify
vTo measure or express the quantity of something.
quantitative
adjRelating to, measuring, or measured by the quantity of something rather than its quality.
quantitatively
advIn a way that relates to, measures, or expresses the amount or number of something.
quantity
nAn amount or number of something, especially one that can be measured or counted.
quantization
nThe process of converting something into a digital form by expressing it as a series of discrete units or levels.
quantize
vto restrict (a variable quantity) to discrete values rather than to a continuous set of values.
quantized
adj(Physics) Restricted to or occurring in specific, discrete, and indivisible units or levels, rather than varying continuously.
quantum
nA discrete and indivisible quantity or amount of a physical property, especially as a unit in quantum theory.
quantum-mechanical
adjRelating to or involving the principles of quantum mechanics.
quarantine
nA period of time when a person or animal that has or may have a disease is kept away from others to prevent the disease from spreading.
quarantined
vplaced in isolation to prevent the spread of disease.
quarantining
vThe present participle or gerund of 'quarantine', meaning to place a person or animal in isolation to prevent the spread of a contagious disease.
quark
n(physics) any of several types of very small elementary particles that are fundamental constituents of matter, combining to form hadrons such as protons and neutrons.
quark-gluon
nA subatomic particle composed of a bound state of quarks and gluons, such as a hadron.
quarrel
nAn angry argument or disagreement between people, often about a personal matter.
quarreling
v(present participle or gerund) arguing angrily or having a disagreement
quarrelsome
adjtending to argue or disagree with people frequently
quarried
adj(of stone or other materials) extracted from a quarry.
quarry
na place, typically a large, deep pit, from which stone or other materials are or have been extracted
quart
nA unit of liquid capacity equal to a quarter of a gallon or two pints, equivalent to approximately 1.136 liters in the UK and 0.946 liters in the US.
quarter
nOne of four equal parts of something
quarter-acre
nA unit of area equal to one quarter of an acre, or 10,890 square feet (approximately 0.1012 hectares).
quarter-century
nA period of twenty-five years.
quarter-hour
nA period of fifteen minutes.
quarter-inch
adjMeasuring a quarter of an inch in length, width, or diameter.
quarter-mile
nA unit of linear measure equal to one fourth of a mile (440 yards or approximately 402 meters).
quarter-point
nA unit of measurement equal to one quarter of one percent (0.25%), used especially in finance to describe changes in interest rates or bond yields.
quarter-pound
nA unit of weight equal to a quarter of a pound (avoirdupois), equivalent to 4 ounces or approximately 113.4 grams.
quarter-size
adjHaving a size equal to one quarter of a standard or original size.
quarter-sized
adjHaving a size equal to or approximately that of a quarter (a U.S. or Canadian coin).
quarterback
nThe player in American football who directs the team's attacking play.
quarterdeck
nThe part of the upper deck of a ship near the stern, traditionally reserved for officers.
quarterfinal
nA match or round in a competition that comes before the semifinal, in which eight players or teams compete.
quarterly
adjHappening or produced four times a year.
quartermaster
na military officer responsible for providing quarters, rations, clothing, and other supplies
quarterstaff
nA long, stout pole, traditionally of oak, used as a weapon in England from the Middle Ages to the 18th century.
quartet
na group of four musicians who play musical instruments or sing together
quartier
nA district or neighborhood in a French-speaking city or town.
quartile
nAny of the three values that divide a set of ranked data into four equal parts.
quarto
na size of book page that results from folding a whole sheet into four leaves
quartz
na hard, typically transparent mineral consisting of silicon dioxide, found widely in igneous, metamorphic, and sedimentary rocks.
quartzite
na very hard, granular metamorphic rock consisting essentially of quartz that has recrystallized under heat and pressure.
quasar
nA very bright object at the center of a distant galaxy, powered by a supermassive black hole.
quash
vto reject or stop something from continuing, especially by legal or official action
quasi
prefixhaving some resemblance to but not actually being the thing specified
quasi-experimental
adj(of a study or research design) resembling an experiment in some way but lacking the full control or random assignment of a true experiment.
quasi-governmental
adjHaving some of the features or authority of a government organization, but not officially part of the government.
quasi-independent
adjHaving some degree of independence but not being fully or completely independent.
quasi-judicial
adjHaving some of the powers and functions of a judge or court, typically in an administrative body, but not part of the official judiciary.
quasi-legal
adjHaving some resemblance to or characteristics of something legal, but not fully or officially so.
quasi-military
adjHaving some of the features or characteristics of a military force but not officially part of a country's armed forces.
quasi-official
adjhaving some authority or status but not fully or formally recognized as official.
quasi-public
adjHaving some characteristics of a public body or service, especially in being supported or regulated by the government, while not being fully state-owned or operated.
quasi-religious
adjHaving some of the features or qualities that are characteristic of religion, but not being formally or fully a religion.
quasi-scientific
adjHaving some appearance or features of science but not meeting its full standards or methods.
quasi-static
adj(of a process or state) changing so slowly that it can be considered to be in equilibrium at each stage.
quaternary
adjRelating to or denoting the most recent period of the Cenozoic era, following the Tertiary period and comprising the Pleistocene and Holocene epochs.
quatrain
nA stanza of four lines, typically with alternate rhymes.
quattrocento
nthe 15th century as a period of italian art and literature, characterized by the development of renaissance culture.
quaver
v(of a voice or musical sound) to shake or tremble
quavering
adj(of a voice or sound) shaking or trembling, typically because of nervousness or strong emotion.
quavery
adj(of a voice or sound) trembling or shaking slightly, often because of nervousness or emotion.
quay
na platform built along the bank of a waterway for ships to load and unload.
quayside
nThe land or area immediately next to a quay or wharf.
qubit
nThe basic unit of quantum information, which can exist in a state of 0, 1, or any quantum superposition of these states.
queasily
advin a way that feels sick or nauseous