An additional sense beyond the five normal ones; the ability to see things that are not detectable by normal sight; clairvoyance; extrasensory perception. / Synonym of senopia

(transport, idiomatic) A rule of thumb for safe driving by which a driver must maintain a two-second distance from the vehicle in front.

plural of error of the second kind

(statistics) type II error

(of a prison) Having a high level of security, designed to house the most dangerous of prisoners.

second-degree murder

A governmental agency that deals with espionage and other acts of secrecy.

The section of a band maintaining the rhythm, consisting of e.g. drums, bass, keyboard, etc.

(business) All organizations in an economy or jurisdiction that are not controlled by government, including privately owned businesses and not-for-profit organizations.

Of or pertaining to the private sector.