Knowledge gained through personal experience.

Implicit agreement through lack of objection.

A form of collusion in which colluding parties do not explicitly share information with one another, achieving a collusive arrangement by an unspoken understanding.

a technology demonstrator aircraft created to demonstrate that a low-observable stealth surveillance aircraft with a low-probability-of-intercept radar and other sensors could operate close to the forward line of battle with a high degree of survivability.

(programming) A programming paradigm in which function definitions do not identify the arguments (or "points") on which they operate. Instead, the definitions merely compose other functions, among which are combinators that manipulate the arguments.

The AGM-136A Tacit Rainbow was a United States military anti-radiation missile program run from 1982 to 1991.