listening post

noun

1. Military.,  a post or position, as in advance of a defensive line, established for the purpose of listening to detect the enemy's movements.

2. any foreign country or city viewed as a source of intelligence about an enemy or rival nation or one that is a potential enemy.

3. any concealed position maintained to obtain information.

   The government had listening posts to keep informed of revolutionary activities.

listening post

noun

1. LP. military a forward position set up to obtain early warning of enemy movement

2. any strategic position or place for obtaining information about another country or area

Word History and Origins

Origin of listening post¹

First recorded in 1915–20