bulkhead

Plural: bulkheads

Noun

• An upright partition dividing a ship or aircraft into compartments.
• a partition that divides a ship or plane into compartments
• A vertical partition dividing the hull into separate compartments; often made watertight to prevent excessive flooding if the ship's hull is breached.
• A similar partition in an aircraft or spacecraft.
• A partition or panel through which connectors pass, or a connector designed to pass through a partition.
• A pressure-resistant sealed barrier to any fluid in a large structure.
• A retaining wall along a waterfront.
• A cellar hatchway.

Examples

• His strategy was to build a bulkhead of words, blocking his opponent’s access to bonus squares.