The act of clearing; as, to make a thorough clearance.
A certificate that a ship or vessel has been cleared at the customhouse; permission to sail.
Clear or net profit.
The distance by which one object clears another, as the distance between the piston and cylinder head at the end of a stroke in a steam engine, or the least distance between the point of a cogwheel tooth and the bottom of a space between teeth of a wheel with which it engages.
Not just in commerce but in the world of ideas too our age is putting on a veritable clearance sale. Everything can be had so dirt cheap that one begins to wonder whether in the end anyone will want to make a bid. Soren Kierkegaard
For years, I had a top secret clearance and never left Russia. Just once did I go to Bulgaria with my wife for a holiday at the Golden Sands resort, but I could not mention my real name. I was allowed to travel abroad only in the early 1990s. Mikhail Kalashnikov
I've been subject to how many security clearance procedures and I must say as irritating as some people may find them I think they are absolutely essential to making sure that people who work in sensitive positions in the national security field in our government are entirely loyal to the United States. John Bolton