/ Dictionary / Index O Oslo: Meaning and Definition of Find definitions for: Os•lo Pronunciation: (oz'lō, os'- Norw. &oobreves'l&oobreve), [key] — n. a seaport in and the capital of Norway, in the SE part, at the head of Oslo Fiord. 463,022. Formerly, Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oslo (Thesaurus) Osler Oslo Fiord Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language