1. [ verb ] (food) be cooked until very little is left; as of sauces
Synonyms: reduce concentrate boil_down

"The sauce should reduce to one cup"

Related terms: decrease cooking concentrate
2. [ verb ] extract the essence of something by boiling it
Related terms: boil decoction
3. [ verb ] steep in hot water
Related terms: infuse steep
Similar spelling:   decoction