1. A hard, dry biscuit or cracker, especially one used as a ship's provision or emergency food.
Usage: Often used in historical or nautical contexts; Also called hardtack or ship's biscuit
2. A type of coarse grass or salt-marsh plant found in arid regions.
Usage: Botanical/regional usage; Common in southwestern United States and Mexico

Examples

• Sailors on long voyages relied on galleta to survive when fresh food was unavailable.
• The ship's stores included barrels of galleta for the crew.
• Galleta grass grows in the dry, salty soils of the desert.
• During the expedition, the explorers packed galleta as their main food supply.
• The tough, tasteless galleta could last for years without spoiling.