NOTE: usually implies long-term alliances or tendencies, unlike Sense 2
They are hoping for support from the Arab bloc of nations.
It's a bloc of southern voters who have traditionally voted the Democratic ticket.
It turns out he worked for the East bloc as a double agent during the Cold War.
WordNet 3.0 Sense Numbers: 1
NOTE: a restricted use of Sense 1, implies short-term alliances for immediate goals
There may be a large enough bipartisan bloc in the Senate to defeat the bill.
The congressman made a surprise switch to the conservative bloc on that issue.
WordNet 0.0 Sense Numbers: 1
Commentary: Automatically generated NOTA sense (bbn)