ice - n. frozen¹ water

idea - n. a thought or picture in the mind; a belief

identify - v. to recognize someone or something and to say who or what they are

if - conj. on condition; provided that ("I will go if you go.")

illegal - ad. not legal; in violation² of a law

imagine - v. to make a picture in the mind; to form an idea

immediate³ - ad. without delay; very near in time or place

import - v. to bring from another country; n. something brought from another country, usually for sale

important - ad. having great meaning, value or power

improve - v. to make better; to become better

in - prep. inside; held by; contained by; surrounded by; during

incident - n. an event or something that happens

incite⁴ - v. to urge or cause an action or emotion, usually something bad or violent

include - v. to have; to make a part of

increase - v. to make more in size or amount

independent - ad. not influenced by or controlled by another or others; free; separate

individual - n. one person

industry - n. any business that produces goods or provides services; the work and related activity in factories and offices; all organizations involved in manufacturing

infect - v. to make sick with something that causes disease

inflation⁵ - n. a continuing rise in prices while the value of money goes down

influence - v. to have an effect on someone or something; to cause change

inform - v. to tell; to give knowledge to

information - n. knowledge; facts

inject - v. to force a fluid into, such as putting medicine or drugs into the body through the skin

injure - v. to cause harm or damage to a person or animal

innocent - ad. not guilty of a crime; not responsible for a bad action

insane⁶ - ad. mentally sick

insect - n. a very small creature, usually with many legs and sometimes with wings

inspect - v. to look at something carefully; to examine, especially by an expert

instead - ad. in the place of; taking the place of

instrument - n. a tool or device designed to do something or to make something

insult - v. to say something or to do something that makes another person angry or dishonored

intelligence - n. the ability to think or learn; information gathered by spying

intelligent - ad. quick to understand or learn

intense - ad. very strong; extremely serious

interest - n. what is important to someone ("He acted to protect his interests." "She had a great interest in painting."); a share in owning a business; money paid for the use of money borrowed

interfere⁷ - v. to get in the way of; to work against; to take part in the activities of others, especially when not asked to do so