leaker — English Dictionary

Noun

1. Somebody who leaks information.

   Examples

   More examples (1)

   Whereas the government had to dig up a nearly 150-year-old case to support its aiding-the-enemy charge, it has had an easier time using the Espionage Act against Manning and other leakers.

2. Anything that leaks.

   Examples

   More examples (1)

   The team decided on a group comparison with eight leakers and eight nonleakers. They selected eight trucks that had failed the leak test with an upper ditch leak. Obtaining trucks that did not leak was more difficult […]

Noun

1. a surreptitious informant

   Broader terms

   informantsource

   Examples

   the president wanted to know who the leakers were