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- IPA (key): /ɪkˈspænʃən/
Audio (US) (file)
- Hyphenation: ex‧pan‧sion
- The act or process of expanding.
- The expansion of metals and plastics in response to heat is well understood.
- A new addition.
- My new office is in the expansion behind the main building.
- A product to be used with a previous product.
- This expansion requires the original game-board.