1. to increase in size, volume, quantity, or scope
2. to give more details about something; to elaborate
3. to spread out or unfold

Examples

• The company plans to expand its operations overseas.
• Heat causes metal to expand.
• Could you expand on your previous statement?
• The balloon expanded as we filled it with air.
• The bird expanded its wings before taking flight.
• The teacher asked her to expand her essay with more examples.
• The universe continues to expand according to scientists.