0 used to refer to a company or organization that does not employ workers who belong to a union, or a person who does not belong to a union:
2 not employing workers who are in a trade union, or not in favour of trade unions:
In effect, by working night and day, union and non-union men erected a partly temporary structure within an unfinished permanent one, a monumental laboring feat.
This point matters because it offers an alternative explanation for the fact that union wages are higher than non-union wages.
Allowing strikebreakers or non-union members to work alongside them in the waterfront warehouses would defeat the very purpose of their organisational strategy.
This may seem surprising, since union workers have higher coverage rates and better pensions than non-union workers.
The agreement only covered a small portion of the company's workforce, the bulk of which remained non-union.
These recalcitrant owners were in an analogous relation to the real estate associations as non-union janitors were to the union, and they were dealt with similarly.
The report suggested hitting strikers financially, a national police force and getting non-union lorry drivers to get supplies across picket lines.
We were circumscribed by the insidious work of the non-union element.