Exam: Cambridge English: B2 First (FCE)

Definition: The condition or level of having a sour or sharp taste, often related to substances that can cause irritation or discomfort.

Example: The acidity of the solution was measured using a pH meter.

Definition: The quality of being sour or having a sharp taste, often associated with substances like vinegar or citrus fruits.

Example: The acidness of the lemon made it a refreshing addition to the drink.

Definition: To accept or admit that something is true or exists, to show appreciation for something, or to confirm that something has been received.

Example: She decided to acknowledge her mistake and apologize.

Definition: This word describes something that is widely accepted or recognized by many people.

Example: Her contributions to the project were acknowledged by the team.

Definition: Related to sound or the sense of hearing, often used to describe things that help control or absorb sound, or musical instruments that produce sound naturally without electronic enhancement.

Example: The concert featured an acoustic guitar performance that captivated the audience.

Definition: A type of musical instrument that produces sound naturally, without electronic amplification.

Example: The acoustic of the concert hall greatly enhanced the performance of the musicians.

Definition: Related to sound or the science of sound, especially how it is heard or produced.

Example: The acoustical design of the concert hall enhances the sound quality of performances.

Definition: In a way that relates to sound or the science of sound, often referring to how sound is produced or heard.

Example: The concert hall was designed acoustically to enhance the sound quality of the performances.

Definition: To help someone learn about or become familiar with something or someone.

Example: I would like to acquaint you with the new policies at our company.

Definition: Having knowledge of or being familiar with someone or something.

Example: I am well acquainted with the rules of the game.

Definition: Able to be obtained or gained.

Example: The skills learned in this course are acquirable through practice and dedication.