soy, soybean, soya bean -- (a source of oil; used for forage and soil improvement and as food)
soy, soya, soybean, soya bean, soybean plant, soja, soja bean, Glycine max -- (erect bushy hairy annual herb having trifoliate leaves and purple to pink flowers; extensively cultivated for food and forage and soil improvement but especially for its nutritious oil-rich seeds; native to Asia)
soy sauce, soy -- (thin sauce made of fermented soy beans)
soy, soybean, soya, soya bean -- (the most highly proteinaceous vegetable known; the fruit of the soybean plant is used in a variety of foods and as fodder (especially as a replacement for animal protein))