1. a plant whose seeds are used to make food products like tofu and soy sauce
2. the edible seed of the soy plant
3. food products made from soybeans

Examples

• Soy is a major crop in the Midwest.
• She added soy sauce to the stir-fry.
• Many vegetarians use soy as a protein source.
• The farmer planted soy in the back field.
• Soy milk is a popular dairy alternative.
• Tofu is made from soy.
• The restaurant offers soy-based meat substitutes.