noun

• Any of the four cultivated plants which belong to the family Erythroxylaceae, native to western South America.
• The dried leaf of one of these plants, the South American shrub (Erythroxylum coca), widely cultivated in Andean countries, which is the source of cocaine and used as aphrodisiac in the past.
• A pastry typically made and consumed in the Catalan-speaking areas.
• A surname.
• (linguistics) Acronym of Corpus of Contemporary American English.