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All Words (121 Words)

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Advanced Words (23 Words)

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Word List

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Word	Meaning	Advanced
expand	v: to increase or to make something greater in size, number, or importance
ozone	n: a poisonous gas with the chemical formula O3, which has a strong smell
exposure	n: the state of being in a particular situation or place where there is no protection from or guarantee to something harmful; the disclosure of something secret
radiation	n: the energy that comes from a nuclear reaction in the form of rays, waves, or particles and that can be hazardous to health
dam	n: a wall constructed over a river to block the flow of water, mainly used to generate energy
absorb	v: to take in a fluid or other substance gradually
molecule	n: a group of two or more atoms held together by attractive forces known as chemical bonds
disperse	v: to spread out or distribute over a broad region, or to cause something to do so
stratosphere	n: the second layer of the Earth’s atmosphere, extending from about 7 to 50 kilometers above the Earth’s surface, containing the ozone layer
continuously	adv: without being interrupted or paused; repeatedly
reform	n: the act of improving or correcting something that is wrong or bad; a change made to correct a flaw or problem
process	n: a series of actions or operations performed to achieve a particular outcome or goal; a systematic procedure or approach used to accomplish a specific task or objective; a method of treating milk to make it suitable for consumption or use in other dairy products
maintain	v: to continue to uphold or sustain; to keep in a particular state or condition; to assert or declare something to be true
equilibrium	n: a state in which opposing forces or influences are balanced
chemistry	n: the branch of the natural sciences dealing with the composition of substances and their properties and reactions
demonstrate	v: to display something or give an exhibition to an interested audience
chemical	adj: relating to or connected with chemistry;
chlorofluorocarbon	n: a type of organic compound containing carbon, chlorine, and fluorine, which was commonly used as a refrigerant and propellant, but which is now largely banned or restricted due to its destructive effect on the ozone layer
upset	adj: causing or marked by anxiety, uneasiness, trouble, or grief; (verb) to make someone anxious, unhappy, or angry
balance	n: a condition in which everything has the same weight or force; something left after other parts have been taken away
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
corporation	n: a large company or group of companies that are controlled together by law as a single unit
refrigerator	n: an appliance or device used for preserving and cooling food and beverages by maintaining a low temperature within a closed compartment
alternative	n: one of two or more available possibilities or choice
ammonia	n: a compound of nitrogen and hydrogen that forms a gas with a strong smell, used as cleaning substances, fertilizers, and explosives
methyl	n: a type of organic compound that is characterized by the presence of a methyl group, which is a single carbon atom attached to three hydrogen atoms, and methyl compounds are commonly used as solvents, fuels, and in the production of a wide range of chemical products
chloride	n: a compound that is formed when the element chlorine is combined with another element, such as sodium, potassium, or calcium, and chloride ions are found in many types of salts and are important for bodily functions such as digestion and fluid balance
flammable	adj: able to burn easily
toxic	adj: of or relating to or caused by a poison; poisonous
flame	n: a bright, visible light and heat source caused by combustion; a strong, intense feeling typically associated with passion, aggression, or anger
leak	v: to allow liquid or gas to get in or out from a hole or crack in a pipe or container
propellant	n: a substance that provides the force to propel (= to cause something to move forwards) something, such as a rocket or spray can
foam	n: a mass of small air bubbles formed on the surface of a liquid; a substance that forms a lather when mixed with water
retardant	n: a substance used to slow or prevent the spread of fire; a chemical added to a material to make it less flammable; (adjective) of or relating to something that slows down or inhibits a process or action
industrious	adj: hardworking, diligent, and persistent in effort
atmosphere	n: the mass of air that surrounds the Earth; the pervading tone or mood of a place, situation, or creative work
react	v: to take action in response to something
release	v: to set free or allow to escape from confinement
chlorine	n: a chemical element with the symbol Cl and atomic number 17, a greenish-yellow gas that is highly reactive and used in a variety of applications, including as a bleach and disinfectant
atom	n: the smallest unit of ordinary matter that forms a chemical element, composed of a nucleus and one or more electrons bound to the nucleus
destroy	v: to ruin or damage severely or completely; to eradicate or eliminate completely
replenish	v: to fill something that had previously been emptied
stable	adj: firm and steady; not easily moved, disturbed, or changed
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
discredit	v: to harm the reputation or credibility of someone or something; to make something appear untrue or unreliable
accuse	v: to charge or criticize someone with a crime or wrongdoing
initial	adj: of or happening at the beginning; (noun) the first letter of a word, especially a person’s name
estimate	v: to guess or calculate the cost, size, value, etc. of something
concentration	n: the ability to focus all your time and energy on one thing without thinking about anything else.
depletion	n: the reduction of something, especially a natural resource, to a critically low level
temperature	n: the degree of hotness or coldness of a thing or place
unique	adj: being the only one of its kind; unlike anything else
structure	n: the way of construction of something and the arrangement of its parts, or a complex thing constructed of many parts
accelerate	v: to make something faster or earlier; to cause to develop or progress more quickly
massive	adj: enormous amount; very heavy and solid
overhead	n: the expense of maintaining something that is involved in operating a business, such as rent and heating; (adverb) above your head; in the sky
satellite	n: an electronic device that is sent up into space and moves around the Earth or another planet, used for gathering information or communicating by radio, television, etc.
rev	n: a measure of the rate at which an engine or motor rotates, often expressed in revolutions per minute (RPM); (verb) to increase the number of rotations per minute
vast	adj: enormous in size, number, amount, or quantity
extent	n: the point or degree or area to which something extends
confirm	v: to support or establish the truth or certainty of something previously believed or suspected to be the case
unquestionably	adv: without a doubt; certainly
visualize	v: to form a mental image or concept of something; to make something visible
broadcast	v: to send out a program or some information on radio or television
capture	v: to catch a person or an animal and confine them in an area which they cannot escape
cancer	n: abnormal growth of cells that can invade and destroy surrounding tissues and organs; a disease characterized by the uncontrolled growth and spread of abnormal cells
skyrocket	v: to rapidly ascend to a very high level; increase rapidly;
photosynthesis	n: the process through which plants and other organisms transform light energy into chemical energy, which is then released through cellular respiration to power the organism’s activities.
impair	v: to damage something or make it weaker or worse
wheat	n: a cereal plant that is the most important kind grown in temperate countries, the grain of which is ground to make flour for bread, pasta, pastry, etc
susceptible	adj: easily influenced, harmed, or affected by something
disease	n: a disorder or illness that affects the body or mind, often characterized by specific symptoms or abnormal functioning of organs or systems
agriculture	n: the practice or science of cultivating the land or raising stock
plummet	v: to fall or drop suddenly and steeply; to decline rapidly or sharply
ecosystem	n: all the plants and living creatures in an area and the way they affect each other and the environment
collapse	v: to fall down or give way suddenly, often after breaking apart
politician	n: a person who is a member of a government or law-making organization, especially as an elected member of parliament, etc.
weigh	v: to have a particular weight; to carefully evaluate things before making a conclusion
immediate	adj: happening or done without delay or occurring shortly after something else
economy	n: the system by which a country or region produces manages, and distributes goods and services, including the money and finances involved in these activities; (of an airline) the lowest-priced, most basic option for seating in commercial travel
disagree	v: to have or express a different opinion, idea, etc.
ban	v: to officially or legally forbid or refuse to allow something
unlikely	adj: not probable or likely to happen
president	n: the leader of a republic, for example, the US; the person in charge of the organization such as a company, university, club, etc.
prime	adj: main or most important; basic
minister	n: a person appointed to or a job of a head of a government department
thatch	n: a material, such as straw or reeds, used to cover the roofs of houses or other buildings
opposition	n: the act of disagreeing or resisting; the state of strong disagreement
government	n: the group of people with authority to control a country or state
regulation	n: an official rule made and maintained by a government or some other authority; the act of controlling or directing something according to a rule
undergo	v: to go through something unpleasant or that involves a change
treatment	n: the way in which someone deals with or behaves towards someone or something; medical care provided to a patient for an injury or illness.
recognize	v: to acknowledge or realize something or someone; to identify, remember, or become aware of something that was previously known or encountered
representative	n: someone who speaks or acts officially on behalf of another person or group of people
protocol	n: a set of rules or procedures for transmitting data or conducting a process or activity, especially in computer networks or scientific experiments; the initial or original version of an agreement
phase	n: any stage in a series of events, change, or development
assist	v: to help someone in doing anything
obtain	v: to get something, especially by making a great effort
affordable	adj: not expensive and able to pay
deplete	v: to reduce something, especially supplies of energy, money, etc., by a large amount; to use up resources or materials
treaty	n: a formal agreement or pact between two or more countries or other international entities
achieve	v: to successfully complete a task or goal, often through hard work, perseverance, and dedication; to attain or accomplish something that one has set out to do
colleague	n: one of a group of a coworker, especially in a profession or a business
joint	adj: shared, held, or made between two or more people; (noun) the point of connection between two bones or elements of a skeleton
award	n: a prize or other mark of recognition given in honor of an achievement
decline	v: to become gradually smaller, fewer, worse, etc.; to refuse to accept
shrink	v: to become smaller, or to make something smaller in size or amount
predict	v: to state beforehand that something will happen in the future, mainly based on knowledge or experience
disappear	v: to cease to exist or be visible
entirely	adv: completely
climate	n: the weather in a particular location averaged over some long period
greenhouse	n: a building with walls and roof made chiefly of transparent material, such as glass, for growing plants in
replace	v: to take the place of something
fluorocarbon	n: any of a group of synthetic organic compounds containing carbon, fluorine, and sometimes other elements used as refrigerants, solvents, propellants, and lubricants
trap	n: a piece of equipment or hole for catching animals or people; (verb) to catch animals or people and prevent them from escaping
carbon	n: a chemical element that can be found in pure form as diamond or graphite, and it is also an essential part of coal and oil and is found in all plants and animals
oxide	n: a chemical compound that contains at least one oxygen atom and one other element
contribute	v: to give something, especially money or goods, to provide or achieve something together with other people
amendment	n: the act or the process of changing something, especially a document or proposed new law
decisive	adj: making a clear and definite decision or choice; settling an issue
cooperation	n: the act or situation of working together with someone towards a shared purpose, benefit, etc.