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experimental group
The people or things in a study that receive the treatment being tested.
expire
To come to an end or finish.
explicit
Clearly stated; leaving no room for confusion.
exploit
To use something unfairly for personal gain.
extend
To make something longer or larger.
extended family
A family that includes grandparents, aunts, uncles, and cousins, not just parents and children.
extension
Extra time that someone is allowed after a deadline has passed.
extinct
No longer in existence.
extinction
The end of a species or group.
extracurricular
Activities outside of regular school curriculum.
extravagance
Excessive spending or lavish behavior.
extrovert
A person who is outgoing and social.
eyesight
The ability to see; vision.
Words selected by Inoh for the TOEFL iBT test. Not an official ETS list. How these words were chosen →