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radiation
Energy that travels in waves or particles.
radioactive
Emitting radiation as a result of decay.
ragtime
A style of early jazz music with syncopation.
raise the roof
Create a loud noise or celebration.
rake over the coals
to reprimand or criticize someone harshly
range
A set of different things or amounts.
rapidly
Quickly or at a fast pace.
ratification
The official approval of an agreement.
readership
The audience that reads a publication.
reasoning
The process of thinking carefully to reach a conclusion.
receipt
A document that proves a purchase.
recession
A significant decline in economic activity.
recipe
A set of instructions for preparing food.
recommendation
a suggestion for a course of action
reconcile
to restore friendly relations
Reconstruction
The period after the US Civil War when the South was rebuilt.
reduce
To make something smaller or less in amount.
reference
A letter or statement from someone describing your skills and character.
refill
To fill something again after it is empty.
refinery
a facility that processes raw materials
reflection
the image seen in a mirror or water
reflex
An automatic response to a stimulus.
refraction
Bending of light as it passes through materials.
refund
to return money for a purchase.
Words selected by Inoh for the TOEFL iBT test. Not an official ETS list. How these words were chosen →