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42,394 words to explore
1,392 words
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mutation
a variation in form or nature
mutual
Shared by two or more people or groups.
mythic
Relating to myths; extraordinary or legendary.
namely
Used to introduce a specific explanation or name.
narcotic
A drug that dulls pain and induces sleep.
narrative
A story or account of events.
natural resources
Materials from nature, such as water, forests, and minerals, that people use.
naturalization
The process of becoming a citizen.
navel
The small central scar on the abdomen.
nearly
Almost; not quite.
nebula
A massive cloud of gas and dust in space.
necessarily
inevitably
nectar
A sweet liquid produced by flowers.
needle in a haystack
Something very hard to find.
neighborhood
A small area of a town or city where people live.
nervous system
The network of the brain and nerves that carries signals through the body.
network
broadcasting system
neuron
A cell that transmits nerve impulses.
neurosis
A mental disorder causing anxiety or distress.
neuroticism
A personality trait involving frequent worry, anxiety, and mood changes.
nicotine
A chemical found in tobacco products.
nitrogen
A colorless, odorless gas essential for life.
no big deal
It's not a serious problem or concern.
no doubt about it
Used to say that something is certainly true.
Words selected by Inoh for the TOEFL iBT test. Not an official ETS list. How these words were chosen →