| 1801 | insomnia | Nate’s insomnia prevented him from getting enough rest. |
| 1802 | inspect | The mechanic inspected our car to see if it had any problems. |
| 1803 | inspire | Jim’s father likes to inspire his son by encouraging him to follow his dream. |
| 1804 | instance | I have never experienced an instance of hate. Have you? |
| 1805 | instant | A microwave oven cooks food in an instant. |
| 1806 | instead | He ate the carrot instead of the ice cream. |
| 1807 | institute | I am going to a lecture about Ancient Rome at the Historical Institute. |
| 1808 | institution | Banks are vital institutions that businesses and people use every day. |
| 1809 | instruct | My teacher instructs us in several subjects. |
| 1810 | instructions | Just follow the instructions and you will be OK. |
| 1811 | instrument | My favorite musical instrument is the piano. |
| 1812 | insulate | People can conserve energy by insulating their houses. |
| 1813 | insult | The girls insulted each other all afternoon. |
| 1814 | intact | Despite being over 30 years old, my father’s model ship is still intact. |
| 1815 | intake | The doctor said I needed to increase my intake of fruits and vegetables. |
| 1816 | integral | She is an integral member of our team. |
| 1817 | integrate | More women are being integrated into the military. |
| 1818 | integrity | The principal had a lot of integrity. |
| 1819 | intellect | She was known for her quick and strong intellect as well as her beauty. |
| 1820 | intellectual | We’ve always considered my Uncle Max to be the intellectual of the family. |
| 1821 | intelligence | Because of his high intelligence, he finished school early. |
| 1822 | intelligent | The intelligent student graduated from high school with the highest marks in his class. |
| 1823 | intend | I intend to finish college in three years. |
| 1824 | intense | The skunk made an intense odor that filled the air. |
| 1825 | intent | Her intent is to visit Italy next summer. |
| 1826 | intention | Do you have good intentions? |
| 1827 | interact | The kids began to interact when the adults left the room. |
| 1828 | interchange | There was an interchange of ideas between the groups. |
| 1829 | interfere | My little sister always interferes when I’m trying to study. |
| 1830 | interior | They looked at the interior of the box. |
| 1831 | internal | We removed the outer case to reveal the computer’s internal wires. |
| 1832 | international | The United Nations is a powerful international organization. |
| 1833 | interpret | It is difficult to interpret while someone is speaking. |
| 1834 | interval | Tony rested for brief intervals while he worked in the yard. |
| 1835 | intervene | The students argued until the teacher intervened. |
| 1836 | intestines | Whatever you eat goes into your intestines. |
| 1837 | intimate | I only tell my secrets to my most intimate friends. |
| 1838 | intimidate | My dad intimidates my friends whenever they visit. |
| 1839 | intrigue | Her mysterious past intrigued her new friend. |
| 1840 | intrinsic | Paper money has no intrinsic value. It is useful simply because society says it is. |
| 1841 | intuitive | Rhonda had an intuitive feeling that Shane wasn’t coming to school today. |
| 1842 | invade | The enemy forces tried to invade our country from the sky. |
| 1843 | invalid | The way to winning debates is to avoid invalid arguments. |
| 1844 | invasion | In Korea, walls were built around cities to protect them from invasions. |
| 1845 | invent | My grandfather has invented some interesting things. |
| 1846 | inventive | The inventive student built a robot to help her with her chores. |
| 1847 | inventory | Gwen was checking the inventory to make sure we had what we needed. |
| 1848 | invest | I invested money in a new building that should bring me a profit. |
| 1849 | investigate | The detective went to investigate the crime. |
| 1850 | invite | I will invite my friends to my birthday party. |
| 1851 | invoke | Before going into battle, the soldier invoked the name of his god for protection. |
| 1852 | involve | The whole family was involved in playing the game. |
| 1853 | inward | She had an inward feeling of guilt when she lied to her mother. |
| 1854 | iron | The horse had shoes made of iron. |
| 1855 | irrigate | In dry climates, it is important to irrigate fields of crops. |
| 1856 | irritable | She is irritable when she doesn’t get enough sleep. |
| 1857 | irritate | She was irritated when her brother told her that he had lost her camera. |
| 1858 | island | Japan is a group of islands. |
| 1859 | isolate | The teacher isolated the bad child from the class before talking with her. |
| 1860 | issue | The men spoke about issues that were important to the people. |
| 1861 | itch | The rough fabric in his shirt made his neck itch. |
| 1862 | item | There were some items of clothing found at the crime scene. |
| 1863 | ivory | The elephant’s long ivory tusks looked very impressive. |
| 1864 | jagged | The swimmer was hurt when he fell on the jagged rocks. |
| 1865 | jail | He was sent to jail for taking other people’s cars. |
| 1866 | janitor | The school janitor cleaned up the messy cafeteria. |
| 1867 | jealous | Miriam was jealous because Sue was paying too much attention to Jim. |
| 1868 | jealousy | She felt a lot of jealousy when she saw her friend with a new car. |
| 1869 | jet | Her company owns a private jet. |
| 1870 | jewel | A diamond is one of the most expensive jewels in the world. |
| 1871 | job | He now has a high-paying job. |
| 1872 | jog | He jogs every day so he can be healthier. |
| 1873 | joint | Mike and Joanna are joint owners of a coffee shop. |
| 1874 | journal | Mi-young was busy working on an article for an art journal. |
| 1875 | journalism | Before becoming a teacher, she worked in journalism. |
| 1876 | journalist | The journalist took notes for a story he was writing. |
| 1877 | journey | I went on a journey across the country with my parents. |
| 1878 | joy | I love baseball. I feel joy when I play. |
| 1879 | judge | The boy was going to judge how his mother’s turkey tasted. |
| 1880 | jungle | Many kinds of animals, including birds, reptiles, and even elephants live in a jungle. |
| 1881 | junior | When she started at the company, she was only a junior manager. |
| 1882 | jurisdiction | We did not have jurisdiction to bring the criminal to trial. |
| 1883 | jury | The jury listened closely to the attorney before they made their decision. |
| 1884 | justice | People turn to the court system when they are seeking justice. |
| 1885 | justify | The government tried to justify its decision to bring the country into a war. |
| 1886 | justly | We justly decided to give the prize to him. |
| 1887 | keen | Only a keen student could have solved that math problem. |
| 1888 | keep | Brian needs to keep working in order to finish his project on time. |
| 1889 | kerosene | Many people in poor countries cook on kerosene stoves. |
| 1890 | kettle | The soup was being cooked in a large kettle. |
| 1891 | key | Marco is a key player on the country’s national team. |
| 1892 | keyboard | Paul spilled coffee all over his keyboard. |
| 1893 | kid | I am not really mad. I was kidding when I said I was angry. |
| 1894 | kidnap | She was terrified to find out her son had been kidnapped. |
| 1895 | kill | I killed the fly. |
| 1896 | kilometer | A marathon is 42.2 kilometers. |
| 1897 | kin | His kin were all farmers. |
| 1898 | kit | Is there a first aid kit in your office? |
| 1899 | kneel | Daryl kneeled down on one knee and asked Nina to marry him. |
| 1900 | knight | He was the best soldier, so the king made him a knight. |
| 1901 | knowledge | He has trouble putting his knowledge into practice. |
| 1902 | known | Bob is known throughout the neighborhood as a burglars. |
| 1903 | label | The label on the back of your shirt will tell you what size it is. |
| 1904 | labor | Building the house took a lot of labor. |
| 1905 | laboratory | My mother works in a laboratory. |
| 1906 | lack | His only problem is a lack of money. |
| 1907 | ladder | He used a ladder to climb to the top of his tree house. |
| 1908 | lag | The girl on rollerblades lagged behind the little girl on the bicycle. |
| 1909 | lame | The terrible accident left many people dead and several others lame. |
| 1910 | landing | The man is in charge of leading the landing in the warzone. |
| 1911 | landlord | The landlord collected everyone’s rent money on the first day of every month. |
| 1912 | landmark | The tall tree was used as a landmark for people to find the road to the inn. |
| 1913 | landscape | The landscape of the country is very green. |
| 1914 | language | The reporter spoke a language Sally had never heard before. |
| 1915 | large | I was frightened by a large bird. |
| 1916 | later | She missed the train, so she’ll arrive a little later than expected. |
| 1917 | latitude | The device was able to tell the traveler his exact latitude. |
| 1918 | latter | In the latter minutes of the game, the visitors scored the winning goal. |
| 1919 | laugh | The sound of her laugh filled the room. |
| 1920 | laughter | Susan’s joke made her classmates burst into laughter. |
| 1921 | launch | The boat launched from the dock and foated down the river. |
| 1922 | laundry | He folded the clean laundry and put the dirty laundry in a basket. |
| 1923 | lava | The red-hot lava poured from the volcano. |
| 1924 | law | The students learned about different laws during social studies class. |
| 1925 | lawn | My dad keeps the lawn in front of our house very neat. |
| 1926 | lawyer | The lawyer left the courthouse after the judge made her decision. |
| 1927 | lay | Don’t lay your socks on the floor. |
| 1928 | layer | There was a layer of snow on the tops of the houses this morning. |
| 1929 | lead | I will lead you to the right place. |
| 1930 | leading | Teresa is the leading expert on brain surgery for dogs. |
| 1931 | lean | The woman leaned against the counter because she was tired. |
| 1932 | leap | He had to leap over the gap to reach the other side of the hill. |
| 1933 | lease | When the family first leased the apartment, the rent was very low. |
| 1934 | leash | Dogs must wear a leash to keep them from running away. |
| 1935 | leather | He got a new leather jacket for his birthday. |
| 1936 | leave | He packed his bag and was ready to leave for home. |
| 1937 | lecture | His lecture on world hunger was very informative. |
| 1938 | leg | She hurt her leg. |
| 1939 | legacy | The legacy of the ancient Egyptians can be seen in their monuments. |
| 1940 | legal | It was not legal for him to drive until he was 18 years old. |
| 1941 | legend | There is a well-known legend about a king and his queen. |
| 1942 | legislate | Senators have to legislate fairly so most people will enjoy the benefits. |
| 1943 | legislature | The senator had served ten years in the national legislature. |
| 1944 | legitimate | She found a legitimate plan to raise extra funds for her vacation. |
| 1945 | lend | My sister lost her pen, so I will lend her mine. |
| 1946 | length | The length of the floor is three meters. |
| 1947 | lentil | Danni made her special soup with lentils when her husband was sick. |
| 1948 | level | Please check the level of the temperature. |
| 1949 | liable | During the summer months, hikers in the forest are liable to see deer and elk. |
| 1950 | liberty | To many people, the Statue of Liberty is a symbol of freedom. |
| 1951 | library | The library at school is full of books. |
| 1952 | license | In the United States, you need a driver’s license to drive legally. |
| 1953 | lick | He licked his ice cream before it melted. |
| 1954 | lie | Whenever Pinocchio lied to his father, his nose grew. |
| 1955 | lieutenant | The lieutenant was a good leader, and his soldiers respected him. |
| 1956 | life | My grandfather had a long life. |
| 1957 | lift | The man tried to lift the box. |
| 1958 | light | I will turn on the light so that you can see. |
| 1959 | lightly | Draw lightly so you do not tear your paper. |
| 1960 | lightning | The lightning flashed above the water. |
| 1961 | likewise | If Joe is not going to school so he can go swimming, I want to do likewise. |
| 1962 | limb | The monkey sat on the tree limb and enjoyed a piece of fruit. |
| 1963 | limit | My mother put a limit on how much I could use the phone. |
| 1964 | limp | After the injury, the player limped off of the field. |
| 1965 | line | This is the longest line I have ever seen. |
| 1966 | linger | The smell of fresh cookies lingered in the bakery. |
| 1967 | linguistic | A linguistic way of studying culture focuses on words within that culture. |
| 1968 | link | The two lines in the poem share a common link. |
| 1969 | lion | We went to see the lion at the zoo. |
| 1970 | liquid | Water is the most important liquid for life. |
| 1971 | list | My mom makes a list of groceries to buy. |
| 1972 | listen | Lisa wanted to listen carefully to her friend. |
| 1973 | literary | He worked hard to create a successful literary career. |
| 1974 | literature | Early American literature covers the poetry and stories from 1500 to 1800. |
| 1975 | lively | Jennifer is very lively: she’s always running and playing. |
| 1976 | liver | The professor showed us what the human liver looks like. |
| 1977 | load | The man loaded the boxes into a truck. |
| 1978 | loaf | Could you please buy a loaf of bread for sandwiches? |
| 1979 | loan | I got a loan from the bank. |
| 1980 | local | The local market in my neighborhood sells all the food we need. |
| 1981 | locale | The spa was the perfect locale for my mother to relax and enjoy her vacation. |
| 1982 | locate | I could not locate my keys in the house. |
| 1983 | lodge | During our ski trip, we stayed at a lodge. |
| 1984 | log | The fire was too small, so we added another log to it. |
| 1985 | lone | A lone man walked along the street. |
| 1986 | loneliness | Many people join social clubs to escape loneliness. |
| 1987 | longevity | Sea turtles have an amazing longevity. |
| 1988 | longing | Since he skipped breakfast, he had a longing for food all morning. |
| 1989 | loop | He made a loop with the rope and placed it over the post. |
| 1990 | loose | The bolt was loose, so I tightened it with the wrench. |
| 1991 | lose | The family never thought they’d lose everything to fire. |
| 1992 | loss | I suffered a big loss while I was gambling. |
| 1993 | loud | The man’s voice was so loud that we all could hear him. |
| 1994 | love | I love my family very much. |
| 1995 | low | The temperature gets very low in the winter. |
| 1996 | lower | The chart shows how his production has lowered over the year. |
| 1997 | loyal | The three friends are very loyal to each other. |
| 1998 | lump | The artist took a lump of clay and turned it into a beautiful pot. |
| 1999 | lunar | During a lunar eclipse, Earth’s shadow darkens the moon’s surface. |
| 2000 | lung | Having strong lungs is necessary for a healthy life. |