KOS

Initialism of Kohler Operating System.

Proper noun

  1. Initialism of Kohler Operating System.

Derived

KOS principle

Noun

  1. Acronym of key operated switch.
  2. Acronym of key-operated selector.
  3. Acronym of Knackered Old Shit.
  4. Initialism of knowledge organization system.
  5. Initialism of knowledge organization structure.
  6. Initialism of kernel operating system.

Phrase

  1. Initialism of keep on smiling.

Verb

  1. Initialism of kill on sight: used in addition to a target player's username to alert teammates of a suspicious player that should be killed when seen.