Monday

idle, igloo, ignore, imaginary, immense, import, incline, include, increase, independence

Tuesday

index, indignant, inhabitant, innocent, inspect, instruct, instruction, intelligence, intelligent, intent

Wednesday

interpret, interval, inventor, invisible, invitation, iodine, irrigate, irrigation, itch, ivory

Thursday

jewelry, jiggle, jog, journal, jug, junction, junior, junk, justice, jut

Friday

keen, kernel, kerosene, kindergarten, kindness, kit, kneel, knelt, knob, labor