Englishfor English speakers
vast
Adjective
—
If something is vast, it is very, very big.
Tax rates will go up for the vast majority of the population.
The system wastes vast sums of money.
To do such work takes vast amounts of time and patience.
The army marched over the vast territories of Russia.
We saw vast improvements in their test scores.
Two boats simply wouldn't be able to find each other in these vast oceans.
Indonesia is stretches over a vast number of islands.
They're building a vast network of power lines to transport the electricity.
He has a vast collection of photos.
The building was vast and empty.
The problem is that distances are so vast.
expanse
—
noun
(= sweep)
a wide scope
the sweep of the plains
—
noun
(= area)
the extent of a 2-dimensional surface enclosed within a boundary
the area of a rectangle
it was about 500 square feet in area
—
noun
a wide and open space or area as of surface or land or sky