English Reference

Word

soy

US/ˈsɔɪ/

UK/sˈɔɪ/

Definitions

01the bean or its protein

B1

n. a type of bean used to make milk, tofu, and other food products.

n. the soybean (Glycine max) or the protein and oil derived from it, frequently used as a meat or dairy alternative.

“Many people choose soy milk as an alternative to cow's milk.”

“The food processing industry relies heavily on soy protein as a functional ingredient in a wide variety of vegetarian products.”

Synonyms

02the sauce

B1 · Cooking

n. a salty, dark brown liquid made from fermented beans, used in cooking.

n. a salty liquid condiment produced by fermenting soybeans with salt and water.

“He added a little soy to the stir-fry to give it more flavour.”

“Traditional soy is aged for several months to develop a complex umami profile that cannot be replicated by chemically produced alternatives.”

Synonyms

soy sauce

03weak or unmasculine

C2

adj. a rude way to describe a man who is seen as weak or not 'manly' enough.

adj. a derogatory descriptor used in online subcultures to characterise a man as weak, overly sensitive, or lacking traditional masculine traits.

“He was tired of being called a soy boy just because he liked art.”

“The forum was filled with users hurling soy insults at anyone who expressed a moderate opinion on the matter.”

Slang · Informal

Usage

Often used as a modifier in compound terms like 'soy boy'.

Teaching tip

This sense is highly informal and often offensive; it is primarily found in aggressive online political or social debates.

Synonyms

Antonyms

Real-World Examples

“Crop yields, especially for corn, rice and soya beans as well as vegetables and fruit, have been badly hit, and milk production has fallen by 20%.”
The Guardian · 17 Aug 2026
“A large coffee in central London, served with an alternative milk like soy or almond, is now closer to the £5 mark.”
BBC News · 28 May 2026

Etymology

Etymology tree Chinese 醬油 /酱油 (jiàngyóu)obor. Japanese 醤油 Japanese そやbor. Dutch sojabor. English soy 1670s; borrowed from Dutch soja, from the Satsuma pronunciation of Japanese 醤油 (soi), variant of the standard Japanese 醤油 (shōyu). Doublet of shoyu, orthographic borrowing from Middle Chinese 醬油 (tsjàng-yuw), from 醬 (tsjangᴴ, “bean paste”) + 油 (“oil”).

Borrowed from French soie (“silk”), soye, from Middle French soye, from Old French soie, earlier seie, from Latin sēta, saeta, from Proto-Italic saitā, from Proto-Indo-European séh₂ito-, sh₂éyto-, from sh₂ey-, *seh₂i- (“to bind”). Doublet of seta.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Level
C2 · Proficiency
Frequency
Frequent
Updated

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