/ Dictionary / Index L Lt. Inf.: Meaning and Definition of Find definitions for: Lt. Inf. Pronunciation: [key] — Mil. Mil. light infantry. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. L.Th. LTJG Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language