1. a military position secured on the enemy’s side of a river or other obstacle
Usage: military
2. a secure position from which to advance or make progress

Examples

• The troops established a bridgehead across the river.
• They used the captured town as a bridgehead for further operations.
• The company’s new office served as a bridgehead into the European market.
• Allied forces defended their bridgehead against counterattacks.
• The research facility became a bridgehead for scientific advancement.
• Engineers worked to expand the bridgehead before the next assault.