Define
Use in a sentence
Antonym
Synonym
Correct?
100

Toxic

Poisonous 

Very harmful or unpleasant 

100

Flora and Fauna 

100

Conservationist 

100

Estate

property, garden, land 


assets, capital, wealth, riches 

100

Electricity is one type of fossil fuel.

No

200

Emigrate

Moving to a new land 

Leaving one's own country to settle permanently in another.

200

Tundra 

200

Emigrate 

Staying in one's own country 

200

Longevity 

Long life 

200

My parents immigrated here when they were little. 

Yes, it's correct. We wouldn't say that they emigrated here when they were little. 

300

Diffusion


Something spreading more widely 
300

Habitat


300

Diffusion

Things staying still? 

300

Consumption

Use, deplete, expend 

400

Genocide

the deliberate killing of a large number of people from a particular nation or ethnic group with the aim of destroying that nation or group

400

Drought 

400

Urban sprawl

Slow expansion of housing/buildings 

400

Tenement 

A piece of land held by an owner 

A room or set of rooms that's a separate residence within a house, an apartment. 

500

Remittance 

a sum of money sent, especially by mail, in payment for goods or services or as a gift.

Sending money in payment 

500

Aqueduct

500

Longevity

Short-lived 

500

Migration

Relocating, moving, resettling 

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