Alphabetical word directory
English words starting with Z
Showing words 1–109 of 109. Choose a word to read its meaning, etymology and origin.
z-score
nA statistical measurement that describes a value's relationship to the mean of a group of values, expressed in terms of standard deviations from the mean.
zag
vTo make a sharp change of direction, especially in a zigzag pattern.
zaibatsu
na large, family-controlled industrial and financial conglomerate in japan, especially before world war ii.
zairean
adjOf or relating to the former country of Zaire (now the Democratic Republic of the Congo) or its people.
zairian
adjOf or relating to Zaire (now the Democratic Republic of the Congo) or its people.
zakat
nIn Islam, an obligatory annual payment made under Islamic law on certain kinds of property and used for charitable and religious purposes.
zambian
adjOf or relating to Zambia or its people.
zaniness
nThe quality or state of being zany; wildly foolish or eccentric behavior.
zany
adjAmusingly unconventional and idiosyncratic
zap
vTo destroy, hit, or kill someone or something suddenly and with force.
zarzuela
nA traditional Spanish form of musical theater that combines spoken dialogue with songs and dances.
zeal
ngreat energy or enthusiasm in pursuit of a cause or an objective
zealot
na person who is extremely enthusiastic about something, especially a religion or political idea, and tries to make other people share their enthusiasm, often using extreme methods.
zealotry
nexcessive and uncompromising devotion to a religious or political cause, often to the point of fanaticism.
zealous
adjfeeling or showing strong and energetic support for a person, cause, etc.
zealously
advin a way that shows great energy or enthusiasm in pursuit of a cause or an objective
zealousness
nThe quality or state of being zealous; intense enthusiasm or fervor.
zeaxanthin
na yellow carotenoid pigment found in plants, egg yolks, and the macula of the eye, important for vision.
zebra
nAn African wild animal of the horse family, with black and white stripes.
zebra-striped
adjHaving a pattern of stripes like those of a zebra.
zebu
nA type of domesticated ox, originally from Asia, which has a large hump over its shoulders and is well-adapted to hot climates.
zee
nThe letter Z, especially in American English.
zeitgeist
nThe general set of ideas, beliefs, feelings, and typical problems of a particular period in history.
zen-like
adjHaving the calm, peaceful, and balanced qualities associated with Zen Buddhism.
zenith
nThe highest point reached by a celestial or other object; the point in the sky directly above an observer.
zenithal
adjRelating to or situated at the zenith, the point in the sky directly above an observer.
zeolite
nany of a large group of minerals consisting of hydrated aluminosilicates of sodium, potassium, calcium, and barium, which can lose and regain water reversibly and are used as ion exchangers and molecular sieves.
zephyr
nA soft, gentle breeze
zeppelin
nA large, rigid airship consisting of a long, cylindrical, covered framework containing compartments filled with gas, with external engines and control cars.
zero
nThe number 0; the figure 0
zero-based
adj(of a budget or method) starting from a point of zero, requiring every item of expenditure to be justified anew, rather than being based on the previous period's figures.
zero-coupon
adj(of a bond or other financial security) paying no interest during its life and issued at a discount to its face value, which is paid at maturity.
zero-degree
noun phraseThe temperature at which water freezes, 0° on the Celsius scale.
zero-emission
adjDescribing a vehicle, process, or technology that produces no harmful gases or pollutants during operation.
zero-energy
adjRelating to or denoting a building or system that uses no more energy over a period than it generates, especially from renewable sources.
zero-g
nA condition or environment in which there is very little or no apparent gravitational force, as experienced in free-fall or orbit; weightlessness.
zero-gee
adjOf, relating to, or simulating a state of weightlessness or zero gravity.
zero-gravity
adjOf, relating to, or simulating a state of very weak gravity, such as that experienced in free fall or orbit far from celestial bodies.
zero-order
adjDescribing a system, process, or reaction whose rate is independent of the concentration of the reactant(s).
zero-point
nThe point on a scale, especially of temperature, that is assigned the value zero.
zero-sum
adj(of a game or situation) in which a gain for one side or participant must be matched by a loss for the other, so the net change is zero.
zero-tolerance
adjdescribing a policy or approach that punishes even minor offences or breaches of rules very severely
zero-turn
adjDescribing a type of lawn mower or other vehicle capable of turning within its own length, with a turning radius of effectively zero.
zest
na feeling of enjoyment and enthusiasm
zester
nA kitchen utensil with a row of small sharp-edged holes, used for removing the outer, colored part of the peel from citrus fruit.
zestful
adjFull of energy, enthusiasm, and enjoyment.
zesty
adjHaving a strong, pleasant, and somewhat spicy flavor or smell.
zidovudine
nA drug used in the treatment of HIV infection, acting by inhibiting the action of reverse transcriptase.
zig
nA sharp change of direction in a zigzag pattern.
zig-zag
adjHaving a series of short, sharp turns or angles in alternating directions.
zig-zagging
adjHaving or moving in a sharp, alternating left and right course
ziggurat
nA rectangular stepped tower, sometimes surmounted by a temple, built in ancient Mesopotamia.
zigzag
nA line or course that has a series of short, sharp turns or angles in alternating directions.
zilch
nnothing at all; zero.
zillion
nAn extremely large, indefinite number
zillionaire
nan extremely rich person, often humorously implying wealth beyond the scale of millionaire or billionaire.
zimbabwean
adjFrom or relating to Zimbabwe, a country in southern Africa.
zinc
na bluish-white metallic element that is used in making alloys and for covering iron and steel to protect against rust
zine
nA small-circulation, non-commercial magazine or newsletter, often produced by an individual or a small group and focused on a specialized subject.
zinfandel
nA type of black grape used to make red wine.
zing
nA quality of excitement, liveliness, or appeal
zinger
nA quick, witty, or pointed remark or retort.
zingy
adjFull of zest, energy, or liveliness; exciting and appealing.
zinnia
na garden plant of the daisy family, which has brightly coloured rounded flowers.
Zionist
nA supporter of Zionism; a person who believes in the development and protection of a Jewish nation in what is now Israel.
zip
nA fastening device consisting of two flexible strips of metal or plastic with interlocking projections closed or opened by pulling a slide along them.
zip-lock
nA type of seal on a plastic bag, formed by two interlocking ridges that can be opened and closed by pulling a slider along them.
zip-top
adjHaving a top or lid that is closed or sealed with a zipper.
zipped
adjFastened or closed with a zip fastener.
zipper
nA device consisting of two flexible strips of metal or plastic with interlocking projections closed or opened by pulling a slide along them, used for fastening garments, bags, etc.
zipper-lock
nA type of lock, often for luggage or bags, that uses a zipper mechanism to secure the opening.
zippered
adjFastened or fitted with a zipper.
zippy
adjFull of energy; lively and fast.
zircon
na mineral, zirconium silicate, occurring as prismatic crystals of various colours, used as a gemstone and as a source of zirconium.
zirconia
na hard crystalline compound of zirconium and oxygen, used in ceramics and as a diamond substitute.
zirconium
na hard, silver-gray metallic element used especially in nuclear reactors and in alloys for its resistance to corrosion.
zit
nA small, red, swollen spot on the skin, especially on the face; a pimple.
zither
na musical instrument with strings stretched over a flat wooden box, played with the fingers or a plectrum.
ziti
nA type of pasta in the form of long, hollow tubes, larger than macaroni.
zodiac
n(usually the zodiac) a band of the sky divided into twelve equal parts, each named after a constellation, used in astrology
zodiacal
adjRelating to or situated in the zodiac.
zoetrope
nan optical toy in the form of a cylinder with a series of pictures on the inner surface that, when viewed through slits with the cylinder rotating, give an impression of continuous motion.
zombie
na dead body that has been brought back to life by a supernatural force, especially in some african and caribbean religions and in horror stories.
zombie-like
adjResembling or characteristic of a zombie, especially in being lifeless, apathetic, or moving in a slow, mechanical way.
zonal
adjrelating to or arranged in zones
zone
nAn area that is different from the areas around it, often because it has a particular use or characteristic
zoning
nThe process of dividing a town or city into areas (zones) in which certain types of building or activity are allowed or not allowed.
zonk
vTo hit or strike someone or something
zoo
nA place where many kinds of wild animals are kept so that people can see them.
zookeeper
nA person who manages or looks after the animals in a zoo.
zoological
adjRelating to the scientific study of animals.
zoologist
nA scientist who studies animals and their behavior, classification, and distribution.
zoology
nthe scientific study of animals and their behavior, classification, and distribution.
zoom
vto move or travel very quickly
zoomorphic
adjhaving or representing animal forms or gods of animal form.
zoonotic
adj(of a disease) able to be transmitted from animals to humans.
zooplankton
nThe small animals that float or drift in great numbers in bodies of salt or fresh water, often serving as food for fish and other larger aquatic animals.
zoroastrian
adjRelating to or characteristic of an ancient Iranian religion founded by the prophet Zoroaster, based on the worship of a supreme god Ahura Mazda and the cosmic struggle between good and evil.
zoster
nA type of viral infection characterized by a painful skin rash with blisters, caused by the varicella-zoster virus; shingles.
zoysia
na type of low-growing, creeping grass native to east asia, valued for its dense turf and tolerance of heat and drought.
zucchini
na long vegetable with dark green skin and white flesh, a type of small marrow
Zulu
nA member of a South African people traditionally living mainly in KwaZulu-Natal province.
zulu-speaking
adjUsing or able to use the Zulu language for communication.
zydeco
na type of lively, rhythmic music originating among the creole people of southern louisiana, typically featuring the accordion and a washboard.
zygomatic
adjRelating to the zygoma, the bony arch of the cheek formed by connections of the temporal and zygomatic bones.
zygote
na cell formed by the union of two gametes; the fertilized egg before it begins to divide.
zz
nThe final letter of the English alphabet.
zzz
nA representation of the sound of snoring or deep sleep.
zzzz
nA representation of the sound of snoring or deep sleep.