Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
100

 to leave and never return to (someone who needs protection or help)

abandon

100

to move or copy (a file, program, etc.) from a computer or device to a usually larger computer or computer network

upload

100

soldiers (synonym)

warriors

100

a great fear of something

phobia

100

to remove salt from (something, such as water)

desalination 

200

used to describe people who hurt others and do not feel sorry about it

not kind

cruel

200

relating to or including many different cultures

multicultural

200

extremely important

crucial

200

a way of doing something

method

200

to understand wrongly

misunderstand 

300

a drug that calms or relaxes someone or something

sedative

300

the state of being alone : the state of being away from other people

privacy

300

to keep (something) in its original state or in good condition

preserve

300

something you need a lot of effort to do successfully

challenge

300

people who disagree with an idea

opponents

400

very different, strange, or unusual

not living or growing naturally in a particular area : from another part of the world

exotic

400

to change your behavior so that it is easier to live in a particular place or situation

adapt

400

a building or chamber above or below the ground in which a dead body is kept

tomb

400

another way to say 'much more ...'

(2 words)

considerably more

400

adjective to describe food grown without chemicals

organic

500

a large flat area of land with grass and very few trees especially in Africa and South America

savannah

500

Japanese word for 'sea person'

Ama

500

the Middle Ages

Medieval

500

 to think about something : to give your attention to the thing you are doing, reading, etc.

concentrate

500

someone who studies volcanoes 

vulcanologist

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