0 present participle of black
1 to put a black substance on something or to make something black:
2 If a trade union or other organization blacks goods or people, it refuses to handle or work with them.
This five-item measure assessed the frequency of drinking six or more drinks, getting drunk, blacking out, passing out, and getting sick.
This 5-item measure assessed the frequency of drinking six or more drinks, getting drunk, blacking out, passing out, and getting sick.
However, we believe that there is another side to the coin: it is the process that the unions call "blacking", which is short for blacklisted.
For all practical purposes it can only conduct these campaigns against flags of convenience by, in effect, blacking ships.
People are resentful of secondary blacking, and are often gravely harmed by it.
That is why blacking is so easy to organise and why it has become so terrifyingly insidious in its effect.
Blacking during a strike, or even when there is no industrial dispute, is a delicate and complicated matter.
It becomes very hard to argue that a considerable element of censorship is not involved in that kind of blacking.