the.com/vast
Big's adult form — the size that stops being a number and starts being a feeling.
means Extremely large in scale, extent, or degree, often beyond easy comprehension.
from From Latin vastus, meaning empty, desolate, or immense — the same root that gives us waste, because emptiness and enormousness were once the same overwhelming thing.
Sibling wordShares ancestry with waste and devastate.
Original moodLatin vastus leaned bleak, not awesome.
Degree, not just sizeA vast difference need not be physical.