Prefixes
Suffixes
Root
What's the Word
Define the word
100

re-

again

100

-ful

full of 

100

cur

run

100

not being able to do something

unable

100

autobiography

story about someone's life that is written by that person

200

con-

with
200

-less

without

200

vent

come

200

the study of life

biography 

200

theology

the study of God 

300

mis-

wrong or badly

300

-ous

characterized by 

300

mania

madness

300

half of the Earth 

hemisphere

300

hyperactivity 

too much activity or movement

400

dis-

do the opposite
400

-able

capable of

400

tract

draw, pull
400

the study of the mind

psychology 

400

Acrophobia

fear of heights 

500

anti-

against

500

-tion

the act or process of 

500

gon

angle 

500

fear of animals

zoophobia

500

pathology

the study of disease