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100

To know the meaning of something that someone says.

understand

100

The air, land, and water were people, animals and plants live.

environment

100

To pay no attention to something or someone.

ignore

100

Showing enthusiasm. 

overenthusiastic 

100

The period of time that is happening NOW.

present

200

The relationship between people who are friends.

friendship

200

Things such as computers, television, and radios

electronic devices

200

Not special, different or unusual in any way.

ordinary

200

The process of destroying something.

destructive

200

To sleep in someone else home for a night.

sleepover

300

If you experience something, it happens to you, or you feel it.

experience

300

An exiting and sometimes dangerous experience.

adventure 

300

To say that someone or something is good or suitable for a particular purpose.

recommended

300

Does not like working or using any effort.

lazy

300

Known or recognized by many people.

famous

400

The process of putting paper, glass, plastic etc. trough a process so that it can be used again.

recycling

400

Something that makes people come to a place or want to do a particular thing.

attraction

400

A strong feeling that you want something.

desire

400

The work you do to keep your house clean.

house work

400

Not friendly.

unfriendly

500

A building that has a machine for showing the positions  of the stars and planets.

Planetarium

500

To follow a person or animal closely and secretly often to try to catch.

stalk

500

To love someone and have a very good opinion of them.

adore

500

Likely to damage your health.

unhealthy

500

Someone who studies science or works in science.

scientist