1. a device that produces sound, especially for signaling or measuring
2. a group of wild pigs
3. a device used to measure the depth of water
Usage: nautical

1. comparative form of sound: more sound, healthier, or more reliable

Examples

• The fire alarm sounder woke everyone in the building.
• The ship’s sounder detected shallow water ahead.
• A sounder of wild boars crossed the forest path.
• His financial advice proved sounder than expected.
• The echo sounder showed the ocean floor clearly.
• After rest, she felt much sounder than before.
• The sounder indicated they were approaching the reef.