Exam: IELTS

Definition: The state of being alert and attentive, especially to avoid danger or problems.

Example: The guard maintained a high level of watchfulness throughout the night.

Definition: Relating to the act of observing something attentively.

Example: The watching crowd was silent as the performance began.

Definition: To look at something for a period of time, usually something that is moving or happening.

Example: I enjoy watching movies on weekends.

Definition: A word or phrase that is used as a password or a guiding principle for a group or individual.

Example: The team's watchword was 'unity', reminding everyone to work together.

Definition: To produce or release liquid, often referring to the act of discharging fluid from the body or mouth.

Example: The dog watered at the sight of the food.

Definition: A clear liquid that is essential for life, found in rivers, lakes, and oceans, and is used for drinking, cooking, and cleaning.

Example: We need to drink plenty of water to stay hydrated.

Definition: A design or mark that is made on paper during its production, which can be seen when the paper is held up to the light.

Example: The artist added a subtle watermark to the paper to prevent forgery.

Definition: To create a faint design or pattern on paper or other materials that is visible when held up to the light, often used for security purposes.

Example: The company decided to watermark their documents to prevent unauthorized copying.

Definition: A significant point that represents a change or division, often marking an important turning point in history or events.

Example: The invention of the internet was a watershed moment in communication.

Definition: A unit of power in the International System of Units, equal to one joule per second, used to measure the rate of energy transfer.

Example: The light bulb uses 60 watts of power.

Definition: A measure of electrical power, usually expressed in watts or kilowatts, that indicates how much energy an appliance or device uses.

Example: The wattage of the light bulb determines how bright it will be.

Definition: To move one's hand or an object back and forth or up and down as a way to greet or signal someone.

Example: She waved at her friend from across the street.

Definition: A shape or movement that rises and falls, like the motion of water or a hand gesture.

Example: The children played in the waves at the beach.

Definition: To move something back and forth or up and down, often to greet someone or get their attention.

Example: She waved her hand to say hello.

Definition: A visual or mathematical representation of a wave, showing its shape and characteristics like frequency and amplitude over time.

Example: The engineer analyzed the waveform to understand the signal's behavior.