inter
over
under
pre
re
100

between or among different countries

International

100

noun for when you work later than your scheduled hours

Overtime

100

adjective to describe something which is below the surface of the earth

Underground

100

noun for something which is attached to the beginning of a word to change its meaning

Prefix

100

to write something again

Rewrite

200

adjective to describe relations between people

Interpersonal

200

adjective to describe someone who is heavier than they should be

Overweight

200

noun for someone who has not yet completed university

Undergraduate

200

adjective used to describe something that existed before history was recorded

Prehistoric

200

to pour some more liquid to the top of a something after it has been emptied

Refill

300

adjjective for between or among different races of people

Interracial

300

adjective to describe somewhere where there are too many people

Overcrowded

300

adjective used especially to describe agricultural countries without much industry

Underdeveloped

300

to see something, especially a film before it is released for the general public

Preview

300

when something goes away or you can’t see it and then you can

Reappear

400

between or among planets

Interplanetary

400

verb for when water or other liquid runs out of something because it is too full

Overflow

400

verb for when someone asks you to pay less than you should for something

Undercharge

400

to form an opinion about a person before you really know them, especially based on ethnicity

Prejudge

400

to rebuild something

Reconstruct

500

place where two lines or roads meet

Intersection

500

verb for guessing the price something will be or the time it will take and you guess too much

Overestimate

500

verb for guessing the price something will be or the time it will take and you guess too little

Underestimate

500

verb to say something existed before a certain time in history.

Predate

500

to think about something again, esp. a decision

Reconsider