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continent (N)
one of the seven large land masses on the earth's surface, surrounded, or mainly surrounded, by ocean and usually consisting of various countries
to revolutionize (V)
to make a big change or improvement to the way something works or looks, or to the way that people do a particular activity
airspace (N)
the air or sky above a country that is considered to belong to that country
overhead (ADV.)
above your head, usually in the sky
likely (ADJ.)
If something is likely, it will probably happen or is expected
significant (ADJ.)
important or noticeable
decrease (V / N)
a reduction
control (V / N)
the act of controlling something or someone, or the power to do this
to record (V)
to store sounds or moving pictures using electronic equipment so that they can be heard or seen later
to permit (V / N)
to allow something
to avoid (V)
to stay away from someone or something
cure (N)
something that makes someone who is sick healthy again
extreme (ADJ.)
very severe or bad
safety (N)
a state in which or a place where you are safe and not in danger or at risk
afraid (ADJ.)
feeling fear, or feeling worry about the possible results of a particular situation
scared (ADJ.)
frightened or worried
to book (V)
to arrange to have a seat, room, performer, etc. at a particular time in the future
to inspect (V)
to look at something or someone carefully in order to discover information, especially about his, her, or its quality or condition
advice (N)
an opinion that someone offers you about what you should do or how you should act in a particular situation
turbulence (N)
strong sudden movements within air or water
crash (N)
an accident involving a vehicle, usually a serious one in which the vehicle is damaged or someone is hurt
to investigate (V)
to examine a crime, problem, statement, etc. carefully, especially to discover the truth
influence (N)
the power to have an effect on people or things, or a person or thing that is able to do this
damaged (ADJ.)
harmed or spoiled
wing (N)
the flat part of the body that a bird, insect, or bat uses for flying, or one of the flat, horizontal structures that stick out from the side of an aircraft and support it when it is flying
engine (N)
a machine that uses the energy from liquid fuel or steam to produce movement
to compare (V)
to examine or look for the difference between two or more things
attitude (N)
a feeling or opinion about something or someone, or a way of behaving that is caused by this
to achieve (V)
to succeed in finishing something or reaching an aim, especially after a lot of work or effort
to reduce (V)
to become or to make something become smaller in size, amount, degree, importance, etc.
phobia (N)
a type of anxiety disorder (= a mental illness that makes someone very worried and affects their life) that involves an extreme fear of something
to concentrate (V)
to direct your attention or your efforts toward a particular activity, subject, or problem
challenge (N)
(the situation of being faced with) something that needs great mental or physical effort in order to be done successfully and therefore tests a person's ability
method (N)
a particular way of doing something
unusual (ADJ.)
different from others of the same type in a way that is surprising, interesting, or attractive
to delay (V)
to make something happen at a later time than originally planned or expected