vanish

C1 · Advanced Mathematics Technical

v. to become equal to zero.

v. to take the value of zero; used of a function, polynomial, or variable.

Español:anularse

“The equation shows that the value will vanish when x equals five.”

“The derivative of the function must vanish at any local maximum or minimum point on the curve.”

C2 · Proficiency Formal

v. to make someone disappear, often by force or for political reasons.

v. to cause someone to disappear, typically by kidnapping or extrajudicial detention for political purposes.

“During the war, many activists were vanished by the secret police.”

“Human rights organisations reported that the regime had vanished dozens of journalists during the recent protests.”

C1 · Advanced Countable noun Theater Technical

n. a magic trick where an object seems to disappear.

n. a performance or illusion in which an object or person is made to appear to disappear.

“The audience gasped when the magician performed a perfect coin vanish.”

“The stage magician spent years perfecting his signature vanish, ensuring the assistant was hidden before the curtain dropped.”