treasure house

Definitions

1. A treasury.
2. A building where valuable things are stored.
3. A collection of (usually intangible) valuable things.
   figuratively

Equivalents

Examples

“Much of this work⟳ of renewal or maintenance, found its way into the works via the outdoor department, and constituted a veritable treasure house of experience⟳ in all classes of plant⟳ and machinery.”

“Our investigation of the vast treasure house of Jewish sacred texts reveals how Judaism's varied and diverse conceptions of an individual afterlife experience⟳ developed progressively, from the sixth century B.C.E. onward.”

CEFR level