INDICATING INDICATION INFERIOR INFLUENCE INFLUENCED INFLUENCING INFORMATION INFORMATION CONCERNING EN ROUTE WEATHER PHENOMENA WHICH MAY AFFECT THE SAFETY OF AIRCRAFT OPERATIONS INFRARED INLAND INOPERATIVE INSTABILITY INSTEAD INSTRUMENT INSTRUMENT FLIGHT RULES INSTRUMENTS INTENSE INTENSELY INTENSIFICATION INTENSIFIED INTENSIFY INTENSIFYING INTENSITY INTERIOR INTERMITTENT INTERMITTENTLY INTERNATIONAL INTERNATIONALLY INTERRUPT, INTERRUPTION INTERRUPTED INTERRUPTING INTERSECTION INTERSECTIONS INVADE INVADED INVADING INVASION INVERSION IOWA ISLAND ISLANDS ISOBAR ISOBARS ISOLATE ISOLATED ISOLATING
INDICATED INDICATE INFERIOR INFLUENCING INFLUENCE INFLUENCED INFORMATION INFRARED INOPERATIVE EMBED INSTABILITY UNSTABLE FACILITIES INSTRUMENT INSTRUMENTS INTENSE INTENSELY INTENSIFICATION INTENSIFIED INTENSIFY INTENSITY DOMESTIC INTERIOR INLAND DOMESTICALLY INTERMITTENT INTERNATIONAL INTERNATIONALLY INTERRUPTING INTERRUPT, INTERRUPTION INTERRUPTED INTERSECTION INTERSECTIONS INVASION INVERSION IOWA UNSTEADY ISOBAR ISOBARS ISOLATING ISOLATION ISOLATED ISOLATE ISOTHERM ISOTHERMS JANUARY LOW LEVEL JET THURSDAY