Unit 1
Unit 2
Unit 3
Unit 4
100

the natural environment in which an animal and plant usually lives 

habitat

100

something such as a place, building, or equipment used a particular purpose or activity

facility

100

the situation of two or more people working together to create or achieve the same thing

collaboration

100

a particular subject, style of literature, art or music

genre

200

someone who has clear ideas and strong feelings about the way something should be in the future 

visionary 

200

to state officially what should be done in a particular situation 

prescribe

200

to express formal support or approval for someone or something

endorse

200
available to everyone

democratized 

300

the possibility or likelihood that something will happen

prospect

300

small and light enough to be carried or moved easily

portable

300

to be a copy of something; be similar to something

mirror

300

of or relating to human society

societal 

400

someone with official responsibility for a particular area of activity 

authority

400

to make something officially acceptable or approved 

validate

400

someone who is willing to offer help

volunteer

400

a choice you can make in a particular situation 

option

500

the fact of finding interesting or valuable things by chance

serendipity 

500

to come to understand something or solve it

figure something out

500

to think that something is less or lower than it really is

underestimate 

500

exactly the same or very similar 

identical 

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