soy

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The soybean.
• noun Soy sauce.

from The Century Dictionary.

• noun A kind or sauce prepared in the East from the soy-bean (see def. 2).
• noun The soy-bean or-pea, Glycine Soja (Soja hispida, etc.).

from the GNU version of the Collaborative International Dictionary of English.

• noun A Chinese and Japanese liquid sauce for fish, etc., made by subjecting boiled beans (esp. soybeans), or beans and meal, to long fermentation and then long digestion in salt and water.
• noun (Bot.) The soybean.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A Chinese and Japanese liquid sauce for fish, made by subjecting boiled beans to long fermentation and then long digestion in salt and water. US preference is the term soy sauce.
• noun Soybeans. Often used attributively.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a source of oil; used for forage and soil improvement and as food
• noun 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
• noun thin sauce made of fermented soy beans
• noun 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)