© 2026 Sloth Lingo. Learn easy. Lounge wisely.

Exam: Cambridge English: C1 Advanced (CAE)

rapturousness

IPA: /ˈræp.tʃər.əs.nəs/

KK: /ˈræp.tʃər.əs.nəs/

noun

Definition: The state of feeling intense joy or delight.

Example: The audience erupted in rapturousness after the performance, showing their appreciation for the artist's talent.

rarefaction

IPA: /ˌrɛrəˈfækʃən/

KK: /rɛrɪˈfækʃən/

noun

Definition: A decrease in density and pressure in a medium, often related to sound waves, where the particles are spread apart.

Example: The rarefaction of air allows sound waves to travel more easily in certain conditions.

rarefied

IPA: /ˈrɛəfəˌfaɪd/

KK: /ˈrɛrɪfaɪd/

adjective

Definition: Belonging to a small, select group or having a high level of quality or style; often used to describe something that is not common or is more refined.

Example: The rarefied atmosphere of the exclusive club made it difficult for newcomers to fit in.

rarefy

IPA: /ˈrɛə.ər.faɪ/

KK: /ˈrɛrɪfaɪ/

intransitive verb

Definition: To become less dense or more thin, often referring to air or other substances.

Example: As the altitude increases, the air begins to rarefy, making it harder to breathe.

transitive verb

Definition: To make something thinner or less dense, often by removing some of its substance or impurities.

Example: The scientist aimed to rarefy the gas in the chamber to study its properties.

rarified

IPA: /ˈrɛrɪfaɪd/

KK: /ˈrɛrɪfaɪd/

adjective

Definition: Describing something that is less dense or has a lower concentration, often used in a figurative sense to refer to ideas or environments that are exclusive or elevated in nature.

Example: The rarified atmosphere of the elite club made it difficult for newcomers to feel comfortable.

rarify

IPA: /ˈrɛrɪfaɪ/

KK: /ˈrɛrɪfaɪ/

verb

Definition: To make something less dense or more rare; to thin out or reduce in density.

Example: The scientist aimed to rarify the gas in the chamber to study its properties.

rashness

IPA: /ˈræʃ.nəs/

KK: /ræʃnəs/

noun

Definition: The quality of acting too quickly without thinking carefully, often leading to mistakes or problems.

Example: His rashness in making decisions often caused issues for the team.

ratification

IPA: /ˌrætɪfɪˈkeɪʃən/

KK: /rætɪfɪˈkeɪʃən/

noun

Definition: The act of formally agreeing to a treaty, contract, or agreement, which makes it officially valid.

Example: The ratification of the treaty was celebrated by both countries.

ratify

IPA: /ˈrætɪfaɪ/

KK: /ˈrætɪfaɪ/

transitive verb

Definition: To formally approve or confirm something, especially a decision or agreement, making it officially valid.

Example: The government decided to ratify the new treaty after much debate.

ratiocinate

IPA: /ˌreɪʃiˈoʊsɪˌneɪt/

KK: /ˈrætʃiəˌneɪt/

intransitive verb

Definition: To think carefully and logically about something in order to understand it or make a decision.

Example: She likes to ratiocinate before making important choices.

←1

...

154815491550

...

1978→