/ Dictionary / Index L lt-yr: Meaning and Definition of Find definitions for: lt-yr Pronunciation: [key] light-year; light-years. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. LTR Lu 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