What is the standard phraseology to release an aircraft to another controller?

The standard phraseology used to transfer control of an aircraft to another controller is "Released." This term signifies that the aircraft is no longer under the original controller's jurisdiction and that the new controller can take over and manage the aircraft as needed. Using clear and concise language is vital in air traffic control to avoid misunderstandings that could lead to safety issues.

The other options, while they may relate to various operational phases, do not accurately convey the transfer of control between controllers. For instance, "Cleared for takeoff" and "Approved for departure" are phrases that specifically relate to granting pilots permission to begin their flight, rather than indicating that a controller is handing over responsibility for an aircraft. "In your hands" may imply a transfer of responsibility but is not the standard terminology recognized in air traffic control communications for this specific situation.