picket line

1. 1.

   a line of people acting as pickets

   Broaderline

Questions about picket line

What does picket line mean?

picket line means "a line of people acting as pickets".

Is picket line a common word?

picket line is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.