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Exam: TOEFL

coexistence

IPA: /ˌkoʊ.ɪkˈzɪs.təns/

KK: /koʊˌɛkˈzɪstəns/

noun

Definition: The situation where two or more things exist at the same time or in the same place, whether they interact with each other or not.

Example: The coexistence of different cultures in the city creates a vibrant community.

coexistent

IPA: //koʊˈɛkzɪstənt//

KK: /koʊˈɛkzɪstənt/

adjective

Definition: Existing at the same time as something else or in the same place.

Example: The two species are coexistent in the same habitat without competing for resources.

cofactor

IPA: //ˈkoʊfæktər//

KK: /ˈkoʊˌfæktər/

noun

Definition: A substance that is necessary for an enzyme to work properly, often a metal ion or a coenzyme, or a factor that helps another factor to produce a specific effect.

Example: Zinc is an important cofactor for many enzymes in the body.

coffee

IPA: //ˈkɔːfi//

KK: /ˈkɔfi/

noun

Definition: A popular drink made from roasted and ground seeds of a tropical plant, often enjoyed hot or cold.

Example: I like to start my day with a cup of coffee.

coffer

IPA: /ˈkɒf.ər/

KK: /ˈkɔfər/

noun

Definition: A strongbox or container used for storing money or valuables, often found in banks or used for safekeeping.

Example: The old coffer in the attic held many treasures from the past.

transitive verb

Definition: To provide a structure, such as a ceiling, with decorative sunken panels or to place something into a coffer.

Example: The architect decided to coffer the ceiling to add an elegant touch to the room.

cogency

IPA: /ˈkoʊdʒənsi/

KK: /ˈkoʊdʒənsi/

noun

Definition: The quality of being clear, logical, and convincing in argument or reasoning.

Example: The cogency of her argument convinced everyone in the room.

cogeneration

IPA: /ˌkoʊdʒəˈneɪʃən/

KK: /koʊˈdʒɛnəˌreɪʃən/

noun

Definition: A method where waste energy from an industrial process is used to generate both electricity and heat.

Example: The factory implemented cogeneration to improve energy efficiency and reduce costs.

cogent

IPA: /ˈkoʊ.dʒənt/

KK: /ˈkoʊdʒənt/

adjective

Definition: This word describes something that is clear, logical, and convincing, especially in arguments or reasoning.

Example: The lawyer presented a cogent case that convinced the jury.

cogently

IPA: //ˈkoʊdʒəntli//

KK: /ˈkoʊdʒəntli/

adverb

Definition: In a clear and convincing way that is easy to understand.

Example: She presented her argument cogently, making it hard for anyone to disagree.

cogitate

IPA: /ˈkɒdʒɪteɪt/

KK: /ˈkɒdʒɪteɪt/

transitive verb

Definition: To think deeply and carefully about something.

Example: She needed time to cogitate before making a decision.

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