To declare debts resolved or favors or other exchange equitable.

plural of call sign

(idiomatic) To go to bed to sleep / (idiomatic) To cease what one has been doing for the night

A box containing a telephone for use in emergency, usually mounted on a post in an area where normal access to telephones is inconvenient (such as on an interstate highway or a very long highway bridge)

(US) When landing on a US aircraft carrier: to sight the lights from the multi-colored optical landing system that shows a pilot to be on the correct approach path or how to correct the approach path.

(finance) The option to call a securitized bond usually after a set time period or after the deal's assets have amortized substantially.

The moment at the end of a performance when actors come back on the stage and thank the audience for applauding them for their performance.

An unexplained absence from work, usually grounds for discipline, where the employee does not alert the employer of his absence ahead of time nor during the scheduled shift.

plural of no-call-no-show

A prank call.