B2 the increase of something in size, number, or importance:
an expansion of industry
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- We need a dynamic expansion of trade with other countries.
- The president said NATO expansion will finally erase the boundary line in Europe artificially created by the Cold War.
- Lack of space is the main restraint on the firm's plans for expansion.
- Any further industrial expansion in the area will face fierce opposition from environmentalists.
- Given the necessary investment, this region is perfect for economic expansion.
