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Từ điển Oxford Advanced Learner 8th
compound
com·pound AW [compound compounds compounded compounding] noun, adjective, verb
noun BrE [ˈkɒmpaʊnd] ; NAmE [ˈkɑːmpaʊnd]
1. a thing consisting of two or more separate things combined together
2. (chemistry)a substance formed by a chemical reaction of two or more elements in fixed amounts relative to each other
•Common salt is a compound of sodium and chlorine.
compare ↑element, ↑mixture
3. (grammar)a noun, an adjective or a verb made of two or more words or parts of words, written as one or more words, or joined by a hyphen. Travel agent, dark-haired and bathroom are all compounds.
4. an area surrounded by a fence or wall in which a factory or other group of buildings stands
•a prison compound
Word Origin:
n. senses 1 to 3 and v. adj. late Middle English compoune Old French compoun- compondre Latin componere ‘put together’ -d expound propound n. sense 4 late 17th cent. Portuguese campon Dutch kampoeng Malay kampong ‘enclosure, hamlet’
Example Bank:
•Dalton believed that the simplest compound of two elements must have one atom of each.
•Police are investigating a raid on a secure compound.
•Scientists have produced a new chemical compound.
•a compound of oxygen and hydrogen
•compounds derived from rainforest plants
•life inside the prison compound
•Angry crowds stormed the presidential palace compound.
•Proteins and fats are organic compounds.
•The air smelled like a compound of diesel and petrol fumes.
adjective BrE [ˈkɒmpaʊnd] ; NAmE [ˈkɑːmpaʊnd] only before noun (technical)
formed of two or more parts
•a compound adjective, such as fair-skinned
•A compound sentence contains two or more clauses.
Word Origin:
n. senses 1 to 3 and v. adj. late Middle English compoune Old French compoun- compondre Latin componere ‘put together’ -d expound propound n. sense 4 late 17th cent. Portuguese campon Dutch kampoeng Malay kampong ‘enclosure, hamlet’
verb BrE [kəmˈpaʊnd] ; NAmE [kəmˈpaʊnd]
1. often passive ~ sth to make sth bad become even worse by causing further damage or problems
•The problems were compounded by severe food shortages.
2. be compounded of/from sth (formal)to be formed from sth
•The DNA molecule is compounded from many smaller molecules.
3. often passive ~ sth (with sth) (formal or technical)to mix sth together
•liquid soaps compounded with disinfectant
4. ~ sth (finance)to pay or charge interest on an amount of money that includes any interest already earned or charged
Verb forms: 
Word Origin:
n. senses 1 to 3 and v. adj. late Middle English compoune Old French compoun- compondre Latin componere ‘put together’ -d expound propound n. sense 4 late 17th cent. Portuguese campon Dutch kampoeng Malay kampong ‘enclosure, hamlet’
Example Bank:
•The Chancellor compounded the situation by ruling out an early cut in interest rates.
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