noun a state of being free from danger or threat
adjective completely free from obstacles or restrictions
The commander gave the 'all clear' signal for the troops to proceed with the mission.
The air traffic controller announced an 'all clear' for planes to take off after the storm passed.
After the building was checked for safety, the firefighter declared an 'all clear' for residents to return.
The security guard confirmed the area was secure and gave the 'all clear' for visitors to enter.
In the context of writing, 'all clear' may refer to receiving approval or confirmation that a piece of writing is free of errors or ready for publication.
In the context of psychology, 'all clear' may refer to a patient being given the go-ahead to resume normal activities after a period of evaluation or treatment.
In the context of air traffic control, 'all clear' is used to indicate that a runway or airspace is free of any obstructions or hazards and is safe for aircraft to proceed.
In the context of construction, 'all clear' may refer to a site being deemed safe for workers to enter or resume work after potential hazards have been addressed.
In the context of the military, 'all clear' may be used to indicate that a designated area or operation is free of threats or dangers.
In the context of emergency response, 'all clear' may indicate that a dangerous situation has been resolved and it is safe for individuals to return to the area.
In the context of quality control, 'all clear' may refer to a product passing inspection and meeting all required standards.
In the context of medicine, 'all clear' may be used to indicate that a patient is free of any health concerns or risks following a medical evaluation or treatment.