1
2
3
4
100

invent 

(noun for people)

inventor

100

lead 

(noun for people)

leader

100

involve 

(abstract noun)

involvement 

100

prefer 

(abstract noun)

preference 

200

One day she'd like to become a __________ (music). 

musician

200

They're spending more and more money on health and ____________ (educate).

education

200

Who was the _______ (create) of Facebook?

creator

200

There was no light, just ___________ (dark) everywhere.

darkness

300

What an ________ (improve)! Your work is much better.

improvement 

300

Giving a presentation is often a question of _________ (confident).

confidence

300

Her ________ (lazy) is having a negative effect on her marks. 

laziness

300

The lights aren't working. We need to call an _________ (electric).

electrician

400

What is the root word of 'freedom'?

free

400

What is the root word of 'appearance' ?

appear

400

What is the root word of 'disappearance'?

appear

400

What is the root word of 'concentration'?

concentrate 
1000

relate 

(three possibilities)

relative, relation, relationship

1000

connect 

(two possibilities)

connection, connector

1000

capable 

(two possibilities)

capableness, capability

1000

friend 

(two possibilities)

friendship, friendliness