Exam: Cambridge English: B2 First (FCE)

Definition: A type of flammable liquid used as fuel, especially in heating and jet engines.

Example: The airplane was fueled with kerosine before takeoff.

Definition: A state in which the body produces a high level of ketone bodies, often due to low carbohydrate intake, leading to the use of fat as the primary energy source.

Example: Many people follow a low-carb diet to achieve ketosis and lose weight.

Definition: Of crucial importance or significance; something that is essential or necessary.

Example: The key factor in our success was teamwork.

Definition: A small object used to open or close a lock, or a button on a machine that you press to make it work.

Example: I lost my house key and had to call a locksmith.

Definition: To adjust or set something to a specific standard or condition, often in a way that makes it work better or fit together properly.

Example: The technician had to key the settings on the machine to ensure it operated correctly.

Definition: A device with keys that you press to input data into a computer or to play music.

Example: I use my keyboard to type messages and play games on my computer.

Definition: To input text or data into a computer using a device with keys, or to play music on a musical instrument with keys.

Example: She learned how to keyboard her favorite songs on the piano.

Definition: The action of typing on a keyboard, usually to input text or data into a computer or device.

Example: Keyboarding skills are essential for many jobs today.

Definition: A main idea or theme that is important in a discussion or event, often used to set the tone for a conference or presentation.

Example: The keynote speaker inspired the audience with her powerful message about innovation.

Definition: To deliver a main speech or address that sets the tone for an event or conference.

Example: The speaker will keynote the annual conference next week.

Definition: A person who delivers a keynote speech, often at a conference or event, to set the main theme or tone.

Example: The keynoter inspired the audience with her powerful message about innovation.

Definition: A small device with buttons that you press to enter numbers or commands, often used with computers or electronic devices.

Example: She entered the code on the keypad to unlock the door.

Definition: A keystroke made by pressing a key on a keyboard.

Example: Each keypress on the keyboard produces a sound that indicates it has been registered.

Definition: A single action of pressing a key on a keyboard.

Example: Each keystroke is recorded when you type on your computer.