What does the word oasis mean?

Usage examples for oasis

  1. In several places are seen groups of tree ferns some 20 feet high, which form a pleasant oasis. – Six Letters From the Colonies by Robert Seaton
  2. Yonder lies the oasis, O! – Desert Love by Joan Conquest
  3. A desert oasis completely surrounded by hills! – Dave Dawson at Casablanca by Robert Sydney Bowen
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