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42,394 words to explore
1,392 words
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free enterprise system
An economy where private businesses compete with little control from government.
frequency
the rate of radio waves' cycles per second
fresco
A painting done on freshly applied plaster.
freshman
A first-year student in high school or college.
friction
The resistance when two surfaces rub together.
from scratch
Creating something starting with nothing.
from time to time
Occasionally; not regularly.
front
The boundary where a warm air mass meets a cold air mass.
frontier
A boundary or edge of settled land.
fundraiser
An event to raise money for a cause.
fungus
A type of organism, like mold or mushrooms.
fusion
A style of music that mixes jazz with rock or other styles.
futile
Having no useful result; pointless.
galaxy
a large system of stars and space
gene
A small part of DNA that controls a particular trait passed from parents.
generally
In most cases; usually or typically.
genetic engineering
Changing the DNA of a living thing to give it new traits.
genetics
The scientific study of genes and inheritance.
genre
a category of artistic work or literature
gentrification
The process of urban renewal displacing residents.
geologist
A scientist who studies the Earth.
geothermal energy
Power produced from heat stored deep inside the earth.
get a grasp of
To begin to understand something, especially something difficult.
get ahold of
To succeed in contacting someone, usually by phone or message.
Words selected by Inoh for the TOEFL iBT test. Not an official ETS list. How these words were chosen →