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All Words (124 Words)

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Advanced Words (42 Words)

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Word List

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Word	Meaning	Advanced
jellyfish	n: a marine creature with a soft, jelly-like body and tentacles for stinging
overwhelm	v: to defeat someone or something by using a great deal of force; to have a strong emotional effect on somebody
diver	n: a person who dives, especially one who does so professionally or as a sport; a bird that dives into the water to catch fish or other prey
swat	v: to strike or hit someone or something with a quick, sharp blow, usually with the hand or a flat object; (noun, an acronym that stands for “Special Weapons And Tactics”) specialized groups within police departments that are trained to handle high-risk operations that regular officers are not equipped to deal with
sting	v: to cause a sharp, painful sensation or injury with a poison, venom, or other substance or by a physical action such as a bite or prick
grain	n: wheat or any other small hard seeds used as a food; a relatively small granular particle of a substance
massive	adj: enormous amount; very heavy and solid
cluster	n: a group of similar things or people close together, often forming a distinct mass or unit
nuclear	adj: of or relating to or constituting the nucleus of an atom; deriving destructive energy from the release of atomic energy
react	v: to take action in response to something
clog	v: to obstruct or block up (a passage, pipe, or system) with an accumulation of thick or sticky matter; to impede or hinder the progress or movement of something
essential	adj: indispensable; fundamental
gram	n: a metric unit of weight equal to one-thousandth of a kilogram
decibel	n: (also “dB”) a unit used to measure the intensity of sound or the comparative loudness of two sounds based on a logarithmic scale
meter	n: a device used to measure the amount of a particular substance or attribute, such as length, volume, or time; (prosody) the accent in a metrical foot of verse
diameter	n: the length of a straight line passing through the center of a circle and connecting two points on the circumference
swarm	n: a group of many things, such as insects, fishes, etc., in the air or water or on the ground
fishery	n: an area of water where fish are caught in large quantities for living; a business or practice of catching and selling fish
snap	v: to record on photographic film; to make a sudden, sharp sound; (noun) the act of catching an object with the hands
devour	v: to eat or consume something eagerly or ravenously; or to destroy something rapidly
voracious	adj: having a very strong appetite or desire for something, especially for food or activity; extremely eager or enthusiastic for something
consume	v: to spend something, especially fuel, energy, or time, in a large amount
larva	n: the immature free-living form of insect or an animal, which at hatching from the egg, is fundamentally unlike its parent and must metamorphose
routinely	adv: on a regular or habitual basis; in a manner that is customary or expected
undermine	v: to make someone or something less powerful, less effective, weaker gradually; to make someone’s fame, confidence, or authority less effective or weaker gradually
marine	adj: relating to the sea and the creatures and plants that live there
outcompete	v: to be more successful in competition than someone or something
survive	v: to live or exist despite a dangerous event or period
trajectory	n: the curved path followed by an object moving through space
gelatinous	adj: having the texture of jelly; having a translucent, jelly-like consistency
creature	n: a living being, especially an animal
humble	adj: having or showing a modest or low estimate of one’s quality or importance
ancient	adj: relating to the long ago, particularly the historical period preceding the fall of the Western Roman Empire; very old
predator	n: an animal whose natural behavior is to prey on others
prey	n: the object of a hunt; an animal hunted or trapped for eating
leather	n: a material made from the skin of an animal, typically by tanning, and used for clothing, shoes, furniture, and other items
exclusive	adj: not divided or shared with others
metric	adj: using or relating to the meter as a unit of length; a system of related measures that facilitates the quantification of some particular characteristic
roughly	adv: approximately but not precisely; with a violent manner
lifespan	n: the length of time for which a person, animal lives, or thing exists
remarkable	adj: worthy of attention because unusual or special
calorie	n: unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree Celsius at atmospheric pressure, used by nutritionists to measure how much energy food will produce
maintain	v: to continue to uphold or sustain; to keep in a particular state or condition; to assert or declare something to be true
grand	adj: important and large in size, scope, or extent
selective	adj: relating to or involving only a small number of a larger group of people or things
protein	n: a molecule made up of a long chain of amino acids, which is essential for the structure and function of the body’s tissues
gonad	n: a reproductive organ that produces gametes, such as testes in males or ovaries in females
mow	v: to cut down and trim grass or other vegetation, usually with a machine such as a lawnmower; to cut down or harvest crops
swath	n: a strip of land, especially a long, narrow one; a large amount or quantity of something
unsuspecting	adj: unaware of the presence of danger; not suspicious
normally	adv: usually; under normal conditions
defenseless	adj: without protection or defense, vulnerable
tentacle	n: a flexible, mobile, and long arm-like organ used for feeling and holding things, catching food, or moving
venomous	adj: extremely poisonous or injurious; containing or producing venom; marked by deep ill will
harpoon	n: a spear-like weapon used for fishing or hunting sea creatures such as whales or sharks; a sharp tool used for piercing or impaling something; (verb) to hunt or capture a fish or other sea creature using a spear-like instrument called a harpoon
coil	v: to wind something in a spiral or helical shape; to create a coil or coil-like shape; to group or organize something closely together in a circular or spiral pattern
launch	v: to send or propel something into the air or space using a device such as a rocket, missile, or spacecraft; to make something available or on sale for the first time
barb	n: a sharp projection or point, often on a plant or animal; a cutting remark or criticism that is meant to hurt or insult; a type of fishing lure that has small hooks and a brightly colored feather or hair
structure	n: the way of construction of something and the arrangement of its parts, or a complex thing constructed of many parts
nematocyst	n: a specialized stinging cell found in the tentacles of cnidarians, such as jellyfish and sea anemones, used for protection and capturing prey
release	v: to set free or allow to escape from confinement
frequent	adj: happening constantly
paralyze	v: to cause a person or part of the body to become unable to move or feel
irritate	v: to annoy, provoke, or cause resentment or anger in someone; to inflame or make sore
would-be	adj: indicating a person who aspires or attempts to be something but has not yet achieved that status or position
intruder	n: someone who enters a place or situation without permission or invitation; someone who interrupts or interferes in something
useless	adj: not serving any useful purpose; having no practical result
reptile	n: a cold-blooded animal that has dry, scaly skin and lays eggs on land, such as snakes, lizards, and turtles
keratin	n: a fibrous protein that is the main structural component of hair, nails, and the outer layer of skin in mammals and birds; also found in horns, hooves, and feathers
nail	n: a thin, pointed piece of metal with a flat head used for fastening things together; the thin hard layer covering and protecting the outer tip of the fingers or toes
claw	n: a curved, pointed appendage found on the foot or leg of an animal, used for gripping or grasping; a human hand with long, narrow fingers that are curved like a claw; a machine or tool with a claw-like opening used for gripping or lifting objects
armor	n: a protective covering made of metal or other durable materials, worn to guard against injury or damage
hunt	v: to go after and try to catch wild animals to kill them for food, sport, or profit
capture	v: to catch a person or an animal and confine them in an area which they cannot escape
imp	n: a mischievous or misbehaving child; a small and mischievous demon or sprite in folklore
spike	n: a narrow, thin, pointed piece of metal, wood, etc.; a sudden large increase in the magnitude or concentration of something
esophagus	n: the muscular tube that connects the mouth and throat to the stomach, which allows food to pass through
adaptation	n: the action or process of changing to suit different conditions
individual	n: a single person or thing, as distinct from a group
population	n: the total number of people in a country, region, or location
defend	v: to protect someone or something from attack, criticism, danger, etc.
mechanism	n: a part of a machine, or a set of parts that performs a task; a natural or established process that occurs during a specific situation or reaction
reproduce	v: to make a copy of something such as a picture, piece of text, music, etc.; to produce offspring through a sexual or asexual process
evolve	v: to develop gradually, or to cause the development of something or someone gradually
asexual	adj: lacking sexual organs or characteristics; not involving or characterized by sexual activity; neither male nor female in gender identity; not operating in a sexual manner or with sexual connotations
numb	adj: unable to feel physical sensation and movement; not showing human feeling or sensitivity
tropical	adj: originating in, located in, or characteristic of the tropics
environment	n: the natural world such as air, water, and land in which humans, animals, and plants live
constantly	adv: all the time
temperate	adj: mild or moderate in temperature or climate; exhibiting self-restraint, particularly about the consumption of food, drink, or other indulgences; showing moderation or restraint in behavior or attitude
climate	n: the weather in a particular location averaged over some long period
bloom	n: a flower, especially one having showy or colorful parts; the best time of youth
multiply	v: to add a number to itself a specified number of times; to increase or cause to increase very much in number or quantity
alarming	adj: causing concern or apprehension; causing a feeling of danger, harm, or emergency; unsettling or disturbing
humanity	n: all people living on the earth; the quality or state of being human rather than an animal, a machine, etc.
fertilizer	n: a natural or chemical substance added to soil to make plants grow more successfully
runoff	n: the occurrence of surplus liquid such as water that exceeds the limit or capacity; another competition, election, race, etc., following a tie or inconclusive outcome
introduction	n: a preliminary explanation or remarks given before the start of a text, performance, or event; the act of bringing something new into existence or introducing something to a wider audience or new market
chemical	adj: relating to or connected with chemistry;
simultaneously	adv: at the same time
prompt	v: to make someone decide to or try to do something, or to make something happen
temperature	n: the degree of hotness or coldness of a thing or place
reproduction	n: the process by which organisms create offspring; the production of something similar to an original work
extend	v: to broaden in scope, range, or area
reproductive	adj: connected with the process of reproduction; relating to reproducing babies, young animals, or plants
construct	v: to build or create something; to assemble or combine different parts to form something whole
pollution	n: the introduction of harmful substances or waste into the natural environment that causes adverse change
dramatically	adv: in a very impressive manner
polyp	n: (of zoology) a small, typically sessile, marine animal with a hollow, cylindrical body and tentacles surrounding a central mouth, often found in colonies and sometimes forming coral reefs; (of gastroenterology) an abnormal tissue growth that can occur in the colon, rectum, or other parts of the gastrointestinal tract
attach	v: to fasten, join, or connect one thing to another
policy	n: a set of rules, guidelines, principles, or procedures that govern decision-making or action, often used in the context of business or government; a course of action or plan of action adopted or followed by an organization or individual to achieve a goal or objective
threat	n: a strong indication or likelihood of harm, danger, or adverse consequences; an expression of intent to inflict harm or injury on someone or something, often made as a means of coercion or intimidation
communal	adj: belonging to or used by a group rather than individuals; for common use
gill	n: a respiratory organ of fish and some other aquatic animals that extracts dissolved oxygen from water and excretes carbon dioxide
unintentional	adj: not done or made on purpose; accidental
pacific	adj: peaceful in character or intent; tending to lessen or avoid conflict; calm or soothing in manner or tone; (noun, as “Pacific”) the largest and deepest of Earth’s oceanic divisions
extinction	n: the complete disappearance of a species from the earth
fortunate	adj: having good luck or lucky
develop	v: to grow or expand; to improve or refine through a process of progress and refinement, often to achieve greater sophistication or complexity; to elaborate or add detail to something that is in the process of being created
inexpensive	adj: costing little; having a low price
minimize	v: to make something, especially something bad, small or less serious
dolphin	n: a marine mammal that typically has a beaklike snout, a streamlined body, and flippers and that feeds on fish and squid
seabird	n: a bird species that spends much of its life on or near the sea, often feeding on fish and other marine animals
gear	n: a toothed wheel that engages another toothed mechanism to change the speed or direction of transmitted motion; a set of tools, equipment, or other items for a particular purpose