Exam: Cambridge English: C1 Advanced (CAE)

Definition: Describing a line or surface that is at a right angle (90 degrees) to another line or surface, often used in geometry and architecture.

Example: The two walls met at a perpendicular angle, creating a perfect corner.

Definition: In a position that is at an angle of 90 degrees to a given line or surface.

Example: The two lines intersect at a perpendicular angle.

Definition: A line or plane that is at an angle of 90 degrees to another line or plane.

Example: The architect ensured that the walls were perpendicular to the floor.

Definition: To carry out or commit an act, especially something harmful or illegal.

Example: The criminals planned to perpetrate a robbery at the bank.

Definition: The act of committing or carrying out something, especially a crime or harmful action.

Example: The perpetration of the fraud was discovered by the authorities.

Definition: A person who carries out or commits a crime or wrongdoing.

Example: The police are searching for the perpetrator of the robbery.

Definition: Continuing for a very long time without stopping or changing.

Example: The perpetual motion machine is a concept that cannot exist in reality.

Definition: Continuously or without interruption; happening all the time.

Example: The sun seems to shine perpetually in this region.

Definition: To make something continue for a long time or forever.

Example: The new law aims to perpetuate the rights of all citizens.

Definition: The act of making something continue to exist or happen for a long time.

Example: The perpetuation of traditions is important for cultural identity.

Definition: A situation or condition that lasts forever or for an indefinite period of time, often used in legal contexts to describe an estate or annuity that cannot be taken away or is meant to last indefinitely.

Example: The trust was established to provide financial support in perpetuity for the local community.

Definition: Something that is confusing or difficult to understand.

Example: The instructions for assembling the furniture were perplexing, leaving many people frustrated.

Definition: To confuse or make someone feel puzzled about something.

Example: The complex math problem was perplexing to the students.