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insular
Isolated or detached from others.
insulate
To protect from heat, cold, or electricity.
insulation
Material that reduces heat loss or sound.
insulator
a material that prevents electricity or heat flow.
insulin
Hormone that regulates blood sugar levels in the body.
insult
A disrespectful remark or action.
insult one's intelligence
to offend someone's smartness or understanding
insurance
A contract to protect against financial loss.
insure
to buy financial protection against loss or damage
insurer
A company that provides financial protection.
insurgency
A rebellion against an established authority.
insurgent
A rebel or revolutionary member.
insurmountable
Too great to be overcome.
insurrection
A violent uprising against authority.
intact
Not damaged or altered; whole.
intake
entry point for air or substances
intangible
Cannot be touched or physically measured.
integer
A whole number, positive or negative.
integral
necessary to make a whole complete
integrate
to combine different parts into a whole
integrated circuit
A tiny chip with many connected electronic parts.
integration
racial or social inclusion in society
integrative
Bringing together different parts into a whole.
integrator
A device that combines multiple systems.