intense [(1) very strong; (2) extremely serious] Security was intense during the President's visit. (1) Learning the language required intense study. (2)
interest [(1)&(2) what is important to someone; (3) a share in owning a business; (4) money paid for the use of money borrowed] He acted to protect his interests. (1) She had a great interest in painting. (2) My father holds an interest in several businesses. (3) The bank approved his loan, but it wanted him to pay 15 percent in interest each year. (4)
interfere [(1) to get in the way of; (2) to work against; (3) to take part in the activities of others, especially when not asked to do so] He did not win the race because another boat interfered by turning in front of his boat. (1) The snowstorm interfered with our plans to climb the mountain. (2) Joanne asked her father not to interfere in her dispute with Bryan. (3)
international [(1) of or about more than one nation or many nations; (2) of the whole world] The international conference of South American leaders has opened in Quito. (1) The information is in the report on international trade. (2)
intervene [(1) to come between; (2) to come between in order to settle or solve] The police intervened before any shots were fired. (1) The President urged the United Nations to intervene in the border dispute. (2)
invade [to enter an area or country by force with an army] Allied forces in England invaded the Normandy area of France in 1944.
invent [(1) to plan and make something never made before; (2) to create a new thing or way of doing something] Did Henry Ford invent the automobile? (1) Did Henry Ford invent a new way to build cars? (2)
invest [to give money to a business or organization with the hope of making more money] George asked his friends to invest in his new oil company.
investigate [(1) to study or examine all information about an event, situation or charge; (2) to search for the truth] Civil rights leaders asked the federal government to investigate voting problems in some parts of Florida. (1) Congress is investigating the president's relationship with a young woman. (2)
invite [to ask someone to take part in or join an event, organization or gathering] Jason invited Candy to his party.
involve [(1) to take part in; (2) to become a part of; (3) to include] He has been involved in drama for many years. (1) She became completely involved with her new family. (2) The project involved thousands of people. (3)
iron [a strong, hard metal used to make machines and tools] People have been making tools of iron for about 2,800 years.
island [a land area with water all around it] Ken lived on several different islands in the South Pacific Ocean.
issue [an important problem or subject that people are discussing or arguing about ] Campaign finance reform was the most important issue in the election campaign.
it [a thing, place, event or idea that is being spoken about ] The sky is blue, but it also has a few white clouds.