all clear

noun

1. the signal that an air raid or other danger is over.

all clear

noun

1. a signal, usually a siren, indicating that some danger, such as an air raid, is over
2. an indication that obstacles are no longer present; permission to proceed

   he received the all clear on the plan

Word History and Origins

Origin of all clear¹

First recorded in 1915–20

Example Sentences

Following the search, police declared an “all clear,” concluding that the third suspect was not on or near campus or a threat to the school community, the university said.

From Los Angeles Times

“They sure complain a lot, but it’s not at all clear on what they want to do,” the 66-year-old said.

From BBC

But perhaps deadlock is fitting for this topic, because it’s not at all clear where the plans go from here.

From BBC

After having chemotherapy and radiotherapy, she was fortunately given the all clear.

From BBC

"First, it is not at all clear that Trump will go to jail, even if convicted," she said.

From Salon

Related Words

• green light