/ Dictionary / Index K Karelian Isthmus: Meaning and Definition of Find definitions for: Kare'lian Isth'mus Pronunciation: [key] a narrow strip of land between Lake Ladoga and the Gulf of Finland, in the NW Russian Federation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Karelian Autonomous Republic Karen Related Content Daily Word Quiz: respite Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language