guard

B1 · Intermediate Uncountable noun

n. a state of being careful and ready for possible danger or trouble.

n. a state of constant vigilance or a defensive posture intended to prevent surprise or injury.

“The sudden question caught him off guard, and he didn't know what to say.”

“The diplomat kept his guard up during the entire negotiation, careful not to reveal his country's true position.”

B1 · Intermediate Countable noun

n. a piece of equipment that protects a part of your body or a dangerous part of a machine.

n. a protective device or attachment designed to prevent injury to a person or damage to a mechanism.

“You should always wear shin guards when playing football to avoid leg injuries.”

“The factory inspector noted that the safety guard on the circular saw had been illegally removed.”

B2 · Upper Intermediate Countable noun Sports

n. a player in certain sports, like basketball or American football, who has a specific defensive or attacking role.

n. a specific player position in team sports, typically involving defensive responsibilities or protecting a key teammate.

“The point guard passed the ball quickly to the taller player under the basket.”

“The offensive guard moved laterally to block the defender, creating a wide lane for the running back.”

C1 · Advanced Countable noun Computing Technical

n. a piece of code that must be true for the rest of the program to continue.

n. a boolean expression that must evaluate to true for a specific branch of program execution to proceed.

“The program uses a guard to check if the user is logged in before showing the page.”

“By implementing a guard clause at the beginning of the function, the developer avoided deeply nested logic for invalid input cases.”

B1 · Intermediate

v. to protect a person, place, or object from weapon attacks, theft, or damage.

v. to watch over or shield from danger; to maintain a state of security over a specific target.

“Two large dogs guard the house while the family is away on holiday.”

“Soldiers were ordered to guard the bridge until the rest of the battalion had safely crossed the river.”