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TOEFL IELTS BNC: 3595 COCA: 3428

compound

1 compound /ˈkɑːmˌpaund/ noun
plural compounds
1 compound
/ˈkɑːmˌpaund/
noun
plural compounds
Learner's definition of COMPOUND
[count]
: something that is formed by combining two or more parts
especially technical : a substance created when the atoms of two or more chemical elements join together复合物,混合物;(尤指)化合物
: a word formed by combining two or more words复合词
compare 4compound
2 compound /kɑmˈpaʊnd/ verb
compounds; compounded; compounding
2 compound
/kɑmˈpaʊnd/
verb
compounds; compounded; compounding
Learner's definition of COMPOUND
[+ object] : to make (something, such as an error or problem) worse : to add to (something bad)使恶化;使加重
finance : to pay interest on both an amount of money and the interest it has already earned支付复利
[+ object]
[no object]
[+ object] : to form (something) by combining separate things合成;混合
usually used as (be) compounded通常用作(be) compounded
3 compound /ˈkɑːmˌpaʊnd/ adjective
3 compound
/ˈkɑːmˌpaʊnd/
adjective
Learner's definition of COMPOUND
: made up of two or more parts复合的;混合的;化合的
: made by combining two or more words(词语)复合的
: consisting of two or more main clauses(句子)复合的
4 compound /ˈkɑːmˌpaʊnd/ noun
plural compounds
4 compound
/ˈkɑːmˌpaʊnd/
noun
plural compounds
Learner's definition of COMPOUND
[count]
: an enclosed area that contains a group of buildings(内有建筑群的)大院,封闭场地
compare 1compound
TOEFL IELTS BNC: 3595 COCA: 3428

compound

1 of 4

noun (1)

com·​pound ˈkäm-ˌpau̇nd How to pronounce compound (audio)
1
: something formed by a union of elements or parts
especially : a distinct substance formed by chemical union of two or more ingredients in definite proportion by weight
a new antibiotic compound
2
a
: a word consisting of components that are words (such as rowboat, high school, devil-may-care)
b
: a word (such as anthropology, kilocycle, builder) consisting of any of various combinations of words, combining forms, or affixes

compound

2 of 4

verb

com·​pound käm-ˈpau̇nd How to pronounce compound (audio)
kəm-ˈpau̇nd,
ˈkäm-ˌpau̇nd How to pronounce compound (audio)
compounded; compounding; compounds

transitive verb

1
a
: to pay (interest) on both the accrued interest and the principal
b
: to add to : augment
compound an error
… had several other medical complications that compounded his condition. Jeffrey S. Hollis
2
: to form by combining parts
compound a medicine
3
: to put together (parts) so as to form a whole : combine
compound ingredients
… a thick sauce compounded of chilies, garlic, and ginger. Andy Birsh
4
a
: to settle amicably : adjust by agreement
b
: to agree for a consideration not to prosecute (an offense)
compound a felony

intransitive verb

1
: to become joined in a compound
2
: to come to terms of agreement
compounded with the enemy for peace
compoundable
käm-ˈpau̇n-də-bəl How to pronounce compound (audio)
kəm-ˈpau̇n-
ˈkäm-ˌpau̇n-
adjective
compounder noun

compound

3 of 4

adjective

com·​pound ˈkäm-ˌpau̇nd How to pronounce compound (audio) käm-ˈpau̇nd How to pronounce compound (audio)
kəm-ˈpau̇nd
1
: composed of or resulting from union of separate elements, ingredients, or parts: such as
a
: having the blade divided to the midrib and forming two or more leaflets on a common axis
a compound leaf
b
: composed of united similar elements especially of a kind usually independent
a compound plant ovary
2
: involving or used in a combination
3
a
of a word : made by combining two or more words : constituting a compound (see compound entry 1 sense 2)
"Steamboat" is a compound noun.
b
of a sentence : having two or more main clauses

compound

4 of 4

noun (2)

com·​pound ˈkäm-ˌpau̇nd How to pronounce compound (audio)
: a fenced or walled-in area containing a group of buildings and especially residences
a prison compound
an embassy compound

Example Sentences

Verb The interest is compounded at regular intervals. we compounded our error by waiting too long to call for help Adjective “Steamboat” is a compound noun. “I told him to leave and he left” is a compound sentence.

Word History

Etymology

Verb

Middle English compounen, from Anglo-French *cumpundre, from Latin componere, from com- + ponere to put — more at position

Adjective and Noun (1)

Middle English compouned, past participle of compounen — see compound entry 2

Noun (2)

by folk etymology from Malay kampung group of buildings, village

First Known Use

Noun (1)

1530, in the meaning defined at sense 2a

Verb

14th century, in the meaning defined at transitive sense 3

Adjective

14th century, in the meaning defined at sense 1

Noun (2)

1679, in the meaning defined above

Time Traveler
The first known use of compound was in the 14th century
TOEFL IELTS BNC: 3595 COCA: 3428
compound

noun¹

1chemical化學品ADJECTIVE | VERB + COMPOUND | COMPOUND + VERB | PREPOSITION ADJECTIVEchemical化合物Scientists have produced a new chemical compound.科學家製造了一種新的化合物。inorganic, organic無機/有機化合物synthetic合成化合物natural天然化合物molecular, simple分子/簡單化合物Dalton believed that the simplest compound of two elements must have one atom of each.道爾頓認為由兩種化學元素組成的最簡單化合物必須含有每種元素的一個原子。active, toxic, volatile活性/有毒/揮發性化合物carbon, iron, etc.碳化合物、鐵化合物等VERB + COMPOUNDform, make, produce形成化合物;產生化合物At the right temperature, the chemicals will form a compound.溫度適宜時,這些化學品就會形成一種化合物。develop, synthesize研製/人工合成化合物discover, identify發現/鑒定化合物isolate分離化合物COMPOUND + VERBcontain sth化合物包含⋯be derived from sth, be found in sth, derive from sth, occur化合物來自⋯;化合物可在⋯中找到;化合物產生compounds derived from rainforest plants來自雨林植物的化合物PREPOSITIONcompound of⋯化合物a compound of oxygen and hydrogen氫氧化合物
compound

noun²

2area of land and buildings土地及建築區ADJECTIVE | PREPOSITION ADJECTIVEmilitary, palace, prison軍營;宮殿群;監獄院落secure, walled嚴密把守的區域;有圍牆的建築群Police are investigating a raid on a secure compound.警方正在調查一起發生在一處嚴密把守的區域中的襲擊事件。PREPOSITIONin a/the compound, inside a/the compound在建築群內life inside the prison compound監獄大院裏的生活

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