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incidence
The occurrence of an event or situation.
incidentally
By the way; as a minor point.
incineration
The process of destroying waste or other material by burning it.
inconvenience
Something that causes trouble or difficulty.
incubation
The process of developing something over time.
indicate
show or point out something clearly.
indict
to formally accuse someone of a crime
indictment
A formal charge of a crime.
indigestion
Discomfort in the stomach after eating.
indoor
located or occurring inside a building
industrialization
The process of developing industries in a region.
inertia
Resistance to change in motion.
infancy
The early stage of life or development.
infection
the invasion of germs causing illness
inflation
economic rise in prices over time
influence
The power to affect someone's thoughts or actions.
infrared light
Energy waves beyond red that people cannot see but can feel as heat.
ingredient
One of the items used in a recipe.
inherently
existing as a natural part
initially
at the beginning; at first
initiate
To start or begin something.
innovation
A new idea or method that improves something.
inquiry
A question or investigation to gain information.
inquisitive
Eager to learn or ask questions.
Words selected by Inoh for the TOEFL iBT test. Not an official ETS list. How these words were chosen →