expanse

/ɪkˈspæns/
noun
  1. A wide, open area or stretch of land, water, sky, or space.
    • The vast expanse of the desert stretched for miles in every direction.
    • From the mountaintop, we could see an endless expanse of green forest.
    • She gazed up at the dark expanse of the night sky filled with stars.
  2. A wide range or extent of something abstract, such as knowledge or time.
    • The project will span a large expanse of the company's future planning.
    • His mind wandered across the vast expanse of human knowledge.
    • The book covers a broad expanse of historical events from ancient to modern times.
Antonyms
What does "expanse" mean? | whatsthatwordmean | whatsthatwordmean